﻿{"id":16502,"date":"2026-03-11T08:15:00","date_gmt":"2026-03-11T07:15:00","guid":{"rendered":"https:\/\/www.sigterritoires.fr\/?p=16502"},"modified":"2026-06-05T22:21:22","modified_gmt":"2026-06-05T20:21:22","slug":"qgis-portable-windows","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/","title":{"rendered":"[FR]QGIS 4.0 portable pour Windows \u2013 T\u00e9l\u00e9charger et utiliser QGIS sans installation"},"content":{"rendered":"<div class='stb-container stb-style-alert'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><br \/>\nMise \u00e0 jour (Juin 2026) :<br \/>\nAvec certaines configurations de windows, en particulier en anglais, les core extensions ne s&rsquo;activaient pas automatiquement. Ce probl\u00e8me a \u00e9t\u00e9 contourn\u00e9.<br \/>\nMise \u00e0 jour (Mai 2026) :<br \/>\nCette version portable de QGis 4.0 a \u00e9t\u00e9 am\u00e9lior\u00e9e pour corriger plusieurs probl\u00e8mes importants li\u00e9s \u00e0 l\u2019environnement Python, au chargement des modules (SIP) et \u00e0 l\u2019initialisation du syst\u00e8me d\u2019authentification.<\/p>\n<p>Le lancement est d\u00e9sormais plus fiable, m\u00eame sur des syst\u00e8mes o\u00f9 plusieurs versions de QGIS sont install\u00e9es ou avec des chemins contenant des espaces.<\/p>\n<p><\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">QGIS est l\u2019un des logiciels SIG (Syst\u00e8me d\u2019Information G\u00e9ographique) open source les plus utilis\u00e9s au monde. Il permet de visualiser, analyser et cartographier des donn\u00e9es g\u00e9ographiques avec une grande richesse d\u2019outils.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux utilisateurs recherchent <strong>une version portable de QGIS pour Windows<\/strong> afin d\u2019utiliser le logiciel <strong>sans installation et sans droits administrateur<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans certains contextes \u2014 universit\u00e9s, administrations, collectivit\u00e9s ou entreprises \u2014 il est parfois impossible d\u2019installer un logiciel sur l\u2019ordinateur. Les utilisateurs n\u2019ont pas toujours les <strong>droits administrateur<\/strong>, ou souhaitent simplement <strong>tester QGIS sans modifier leur syst\u00e8me<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La solution consiste alors \u00e0 utiliser <strong>QGIS en version portable<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette version portable de QGIS 4.0 a \u00e9t\u00e9 mise \u00e0 jour pour offrir un environnement plus stable, corriger les erreurs Python rencontr\u00e9es dans certaines configurations et permettre une utilisation fiable en contexte professionnel, p\u00e9dagogique ou sur cl\u00e9 USB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je propose ici <strong>deux versions portables de QGIS 4 pour Windows<\/strong>, pr\u00eates \u00e0 \u00eatre utilis\u00e9es sans installation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contenu <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Ameliorations_de_la_version_portable_QGIS_4\" >Am\u00e9liorations de la version portable QGIS 4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Correction_des_problemes_Python\" >Correction des probl\u00e8mes Python<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Amelioration_de_lenvironnement_portable\" >Am\u00e9lioration de l\u2019environnement portable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Activation_du_systeme_dauthentification\" >Activation du syst\u00e8me d\u2019authentification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Environnement_isole\" >Environnement isol\u00e9<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Quest-ce_quune_version_portable_de_QGIS\" >Qu\u2019est-ce qu\u2019une version portable de QGIS ?<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Pourquoi_utiliser_QGIS_portable\" >Pourquoi utiliser QGIS portable ?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Tester_QGIS_sans_installer_le_logiciel\" >Tester QGIS sans installer le logiciel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Utiliser_QGIS_sans_droits_administrateur\" >Utiliser QGIS sans droits administrateur<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Ideal_pour_les_formations_et_les_travaux_pratiques\" >Id\u00e9al pour les formations et les travaux pratiques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Emporter_QGIS_sur_une_cle_USB\" >Emporter QGIS sur une cl\u00e9 USB<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Telecharger_QGIS_portable_pour_Windows\" >T\u00e9l\u00e9charger QGIS portable pour Windows<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#QGIS_portable_%E2%80%93_version_complete\" >QGIS portable \u2013 version compl\u00e8te<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#QGIS_portable_%E2%80%93_version_allegee\" >QGIS portable \u2013 version all\u00e9g\u00e9e<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Comment_utiliser_QGIS_portable\" >Comment utiliser QGIS portable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Limites_dune_version_portable\" >Limites d\u2019une version portable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Problemes_courants_corriges\" >Probl\u00e8mes courants corrig\u00e9s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#FAQ_%E2%80%93_QGIS_portable\" >FAQ \u2013 QGIS portable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ameliorations_de_la_version_portable_QGIS_4\"><\/span>Am\u00e9liorations de la version portable QGIS 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cette version portable a \u00e9t\u00e9 mise \u00e0 jour pour am\u00e9liorer la stabilit\u00e9 et la compatibilit\u00e9 dans diff\u00e9rents environnements Windows.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Correction_des_problemes_Python\"><\/span>Correction des probl\u00e8mes Python<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les erreurs suivantes ont \u00e9t\u00e9 corrig\u00e9es :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>ModuleNotFoundError: No module named 'qgis'<\/code><\/li>\n\n\n\n<li>probl\u00e8mes li\u00e9s au module SIP<\/li>\n\n\n\n<li>erreurs caus\u00e9es par les chemins Windows (<code>\\a<\/code>, <code>\\t<\/code>, etc.)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">&#x1f449; R\u00e9sultat : le support Python est d\u00e9sormais pleinement fonctionnel.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Amelioration_de_lenvironnement_portable\"><\/span>Am\u00e9lioration de l\u2019environnement portable<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le script de lancement a \u00e9t\u00e9 am\u00e9lior\u00e9 pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>mieux g\u00e9rer les chemins contenant des espaces<\/li>\n\n\n\n<li>\u00e9viter les conflits avec des versions de QGIS d\u00e9j\u00e0 install\u00e9es<\/li>\n\n\n\n<li>initialiser correctement les variables d\u2019environnement<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">&#x1f449; R\u00e9sultat : d\u00e9marrage plus fiable sur tous les postes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Activation_du_systeme_dauthentification\"><\/span>Activation du syst\u00e8me d\u2019authentification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le syst\u00e8me d\u2019authentification de QGIS est d\u00e9sormais correctement initialis\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Auparavant, certains utilisateurs pouvaient rencontrer le message :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><strong>Authentication System: DISABLED<\/strong><\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ce probl\u00e8me a \u00e9t\u00e9 corrig\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#x1f449; R\u00e9sultat :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>acc\u00e8s aux connexions s\u00e9curis\u00e9es (<a href=\"https:\/\/www.sigterritoires.fr\/index.php\/debuter-avec-postgrespostgis\/\">PostGIS<\/a>, WMS\u2026)<\/li>\n\n\n\n<li>gestion des identifiants disponible dans QGIS<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Environnement_isole\"><\/span>Environnement isol\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La version portable est d\u00e9sormais totalement autonome :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>aucune interf\u00e9rence avec QGIS install\u00e9<\/li>\n\n\n\n<li>environnement Python isol\u00e9<\/li>\n\n\n\n<li>profil utilisateur portable<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">&#x1f449; R\u00e9sultat : fonctionnement identique sur toutes les machines.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong><em>T\u00e9l\u00e9charger QGIS 4 portable pour Windows<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em><a href=\"https:\/\/www.sigterritoires.fr\/QGis4.0\" title=\"\">&#x2714; QGIS 4.0.0 portable \u2013 version compl\u00e8te (1.2 GB)<\/a><br><a href=\"https:\/\/www.sigterritoires.fr\/QGis4.0Lite\" title=\"\">&#x2714; QGIS 4 .0.0 portable \u2013 version all\u00e9g\u00e9e (362 MB<\/a>)<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>Compatible Windows 10 et Windows 11<br>Aucune installation n\u00e9cessaire<\/em><\/strong><\/p>\n<\/div><\/div>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quest-ce_quune_version_portable_de_QGIS\"><\/span>Qu\u2019est-ce qu\u2019une version portable de QGIS ?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Un <strong>QGIS portable<\/strong> est une version du logiciel qui fonctionne <strong>sans installation sur l\u2019ordinateur<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement \u00e0 une installation classique, tout le logiciel est contenu dans un <strong>simple dossier<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il suffit de :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>t\u00e9l\u00e9charger l\u2019archive<\/li>\n\n\n\n<li>d\u00e9compresser le dossier<\/li>\n\n\n\n<li>lancer QGIS<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Aucun droit administrateur n\u2019est n\u00e9cessaire et aucun fichier n\u2019est install\u00e9 dans le syst\u00e8me Windows.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela permet d\u2019utiliser QGIS :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>depuis une <strong>cl\u00e9 USB<\/strong><\/li>\n\n\n\n<li>depuis un <strong>disque externe<\/strong><\/li>\n\n\n\n<li>depuis un <strong>dossier partag\u00e9<\/strong><\/li>\n\n\n\n<li>ou simplement sur un ordinateur <strong>sans installation du logiciel<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tous les param\u00e8tres, plugins et profils utilisateur restent <strong>dans le dossier portable<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pourquoi_utiliser_QGIS_portable\"><\/span>Pourquoi utiliser QGIS portable ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les versions portables de QGIS sont particuli\u00e8rement utiles dans plusieurs situations.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tester_QGIS_sans_installer_le_logiciel\"><\/span>Tester QGIS sans installer le logiciel<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux utilisateurs souhaitent <strong>tester QGIS avant de l\u2019installer<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une version portable permet de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>d\u00e9couvrir l\u2019interface<\/li>\n\n\n\n<li>tester les fonctionnalit\u00e9s<\/li>\n\n\n\n<li>ouvrir des projets QGIS<\/li>\n\n\n\n<li>v\u00e9rifier la compatibilit\u00e9 avec ses donn\u00e9es<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">sans modifier le syst\u00e8me informatique.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Utiliser_QGIS_sans_droits_administrateur\"><\/span>Utiliser QGIS sans droits administrateur<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans beaucoup d\u2019organisations (administrations, collectivit\u00e9s, universit\u00e9s), les utilisateurs <strong>n\u2019ont pas l\u2019autorisation d\u2019installer des logiciels<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un QGIS portable permet alors de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>lancer QGIS directement<\/li>\n\n\n\n<li>travailler sur ses donn\u00e9es<\/li>\n\n\n\n<li>tester des projets SIG<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">sans installation et sans modification du poste informatique.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ideal_pour_les_formations_et_les_travaux_pratiques\"><\/span>Id\u00e9al pour les formations et les travaux pratiques<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les versions portables sont tr\u00e8s utiles pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les <strong>formations QGIS<\/strong><\/li>\n\n\n\n<li>les <strong>travaux pratiques \u00e9tudiants<\/strong><\/li>\n\n\n\n<li>les <strong>ateliers SIG<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tous les participants peuvent t\u00e9l\u00e9charger <strong>exactement la m\u00eame version de QGIS<\/strong>, ce qui garantit un environnement identique pour tout le monde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est m\u00eame possible d\u2019inclure dans le dossier portable :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des <strong>donn\u00e9es d\u2019exercices<\/strong><\/li>\n\n\n\n<li>des <strong>projets QGIS<\/strong><\/li>\n\n\n\n<li>des <strong>styles cartographiques<\/strong><\/li>\n\n\n\n<li>des <strong>plugins n\u00e9cessaires \u00e0 la formation<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Emporter_QGIS_sur_une_cle_USB\"><\/span>Emporter QGIS sur une cl\u00e9 USB<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Avec une version portable, QGIS peut \u00eatre install\u00e9 sur une <strong>cl\u00e9 USB<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous pouvez ainsi emporter votre environnement SIG partout :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>en formation<\/li>\n\n\n\n<li>dans une salle informatique<\/li>\n\n\n\n<li>sur diff\u00e9rents ordinateurs<\/li>\n\n\n\n<li>en d\u00e9placement.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Il suffit de brancher la cl\u00e9 USB et de lancer QGIS.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Telecharger_QGIS_portable_pour_Windows\"><\/span>T\u00e9l\u00e9charger QGIS portable pour Windows<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Je propose deux variantes de <strong>QGIS portable Windows<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"QGIS_portable_%E2%80%93_version_complete\"><\/span>QGIS portable \u2013 version compl\u00e8te<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cette version contient l\u2019ensemble des composants principaux de QGIS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elle est recommand\u00e9e pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>un usage g\u00e9n\u00e9ral<\/li>\n\n\n\n<li>tester toutes les fonctionnalit\u00e9s du logiciel<\/li>\n\n\n\n<li>les utilisateurs avanc\u00e9s.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.sigterritoires.fr\/QGis4.0\" title=\"\">T\u00e9l\u00e9charger cette version 4.0.0 compl\u00e8te (1.2 GB)<\/a><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"QGIS_portable_%E2%80%93_version_allegee\"><\/span>QGIS portable \u2013 version all\u00e9g\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cette version a \u00e9t\u00e9 optimis\u00e9e pour r\u00e9duire la taille du t\u00e9l\u00e9chargement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Certains modules volumineux rarement utilis\u00e9s en formation ont \u00e9t\u00e9 retir\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce qui a \u00e9t\u00e9 supprim\u00e9 dans la version lite&nbsp;:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1-Suppression des composants lourds inutiles<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\grass<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\grass78<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\grass84<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\saga<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\orfeotoolbox<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\Qt6\\translations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\Qt6\\doc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2-Nettoyage des projections et donn\u00e9es lourdes<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">share\\proj<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On a gard\u00e9 seulement :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">proj.db<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">et supprim\u00e9 les fichiers de test ou anciens.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3- Suppression des \u00e9l\u00e9ments de d\u00e9veloppement Python<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\Python\\Lib\\test<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\Python\\Lib\\idlelib<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">apps\\Python\\Lib\\tkinter<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elle est particuli\u00e8rement adapt\u00e9e pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les \u00e9tudiants<\/li>\n\n\n\n<li>les formations SIG<\/li>\n\n\n\n<li>une utilisation sur cl\u00e9 USB<\/li>\n\n\n\n<li>un t\u00e9l\u00e9chargement plus rapide.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.sigterritoires.fr\/QGis4.0Lite\" title=\"\">T\u00e9l\u00e9charger cette version 4.0.0 all\u00e9g\u00e9e (363 MB)<\/a><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comment_utiliser_QGIS_portable\"><\/span>Comment utiliser QGIS portable<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"404\" data-attachment-id=\"16503\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/qgis-portable-dossier-windows\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?fit=1781%2C1123&amp;ssl=1\" data-orig-size=\"1781,1123\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"qgis-portable-dossier-windows\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?fit=640%2C404&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?resize=640%2C404&#038;ssl=1\" alt=\"Structure du dossier QGIS portable sous Windows\" class=\"wp-image-16503\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?resize=1024%2C646&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?resize=300%2C189&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?resize=768%2C484&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?resize=1536%2C969&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?w=1781&amp;ssl=1 1781w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-dossier-windows.png?w=1280&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s t\u00e9l\u00e9chargement :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>d\u00e9compresser l\u2019archive<\/li>\n\n\n\n<li>ouvrir le dossier<\/li>\n\n\n\n<li>lancer :<\/li>\n<\/ol>\n\n\n<div class='stb-container stb-style-black'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">launch_qgis_portable.bat<\/pre>\n\n\n<p><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">QGIS d\u00e9marre imm\u00e9diatement.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Lors du lancement, une fen\u00eatre noire peut appara\u00eetre bri\u00e8vement et le d\u00e9marrage peut prendre quelques secondes (ou davantage depuis une cl\u00e9 USB). Ce comportement est normal pour une version portable.<\/p>\n\n\n<div class='stb-container stb-style-alert'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'><br \/>\nUne erreur se produit lorsque le paquet portable est d\u00e9compress\u00e9 et lanc\u00e9 directement depuis le dossier \u00ab T\u00e9l\u00e9chargements \u00bb de Windows, par exemple :<\/p>\n<p>C:\\Users<nom d'utilisateur>\\T\u00e9l\u00e9chargements&#8230;<\/p>\n<p>Le m\u00eame paquet se lance correctement lorsqu&rsquo;il est d\u00e9plac\u00e9 vers un simple r\u00e9pertoire local tel que :<br \/>\nC:\\QGIS4  ou D:\\QGIS4<\/p>\n<p>Le probl\u00e8me semble \u00eatre li\u00e9 \u00e0 la gestion du chemin Python dans certains scripts de d\u00e9marrage lorsque le chemin d&rsquo;installation contient \u00ab C:\\Users&#8230; \u00bb. Cela explique l&rsquo;erreur \u00ab unicodeescape \u00bb signal\u00e9e lors du d\u00e9marrage.<\/p>\n<p>Pour contourner le probl\u00e8me, veuillez extraire l&rsquo;archive dans un dossier local standard en dehors du dossier T\u00e9l\u00e9chargements et lancer QGIS \u00e0 partir de l\u00e0.<\/p>\n<p><\/div><\/div>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong><em>Si Windows bloque le script <code>.bat<\/code>, cliquez sur Propri\u00e9t\u00e9s \u2192 D\u00e9bloquer avant d\u2019extraire l\u2019archive.<\/em><\/strong><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"331\" data-attachment-id=\"16504\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/qgis-portable-interface\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?fit=2560%2C1324&amp;ssl=1\" data-orig-size=\"2560,1324\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"qgis-portable-interface\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?fit=640%2C331&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface.png?resize=640%2C331&#038;ssl=1\" alt=\"Interface de QGIS portable ouverte\" class=\"wp-image-16504\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?resize=1024%2C529&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?resize=300%2C155&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?resize=768%2C397&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?resize=1536%2C794&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?resize=2048%2C1059&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis-portable-interface-scaled.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"302\" data-attachment-id=\"16505\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/qgis-portable-windows\/version-qgis-4-portable\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?fit=2560%2C1207&amp;ssl=1\" data-orig-size=\"2560,1207\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"version-qgis-4-portable\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?fit=640%2C302&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable.png?resize=640%2C302&#038;ssl=1\" alt=\"A propos de la nouvelle version 4.0.0 portable\" class=\"wp-image-16505\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?resize=1024%2C483&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?resize=300%2C141&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?resize=768%2C362&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?resize=1536%2C724&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?resize=2048%2C966&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/version-qgis-4-portable-scaled.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Les plugins, param\u00e8tres et profils utilisateur sont automatiquement stock\u00e9s <strong>dans le dossier portable<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limites_dune_version_portable\"><\/span>Limites d\u2019une version portable<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00eame si QGIS portable est tr\u00e8s pratique, il existe quelques diff\u00e9rences avec une installation classique :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>certaines int\u00e9grations syst\u00e8me peuvent \u00eatre absentes<\/li>\n\n\n\n<li>certains modules avanc\u00e9s peuvent manquer dans les versions all\u00e9g\u00e9es<\/li>\n\n\n\n<li>les mises \u00e0 jour doivent \u00eatre faites manuellement.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pour un usage quotidien intensif, une installation standard de QGIS reste g\u00e9n\u00e9ralement recommand\u00e9e.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Problemes_courants_corriges\"><\/span>Probl\u00e8mes courants corrig\u00e9s<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cette version corrige plusieurs probl\u00e8mes fr\u00e9quemment rencontr\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>QGIS portable ne d\u00e9marre pas correctement<\/li>\n\n\n\n<li>erreurs Python au lancement<\/li>\n\n\n\n<li>message \u201cAuthentication System: DISABLED\u201d<\/li>\n\n\n\n<li>incompatibilit\u00e9s avec Windows 10 \/ 11<\/li>\n\n\n\n<li>conflits avec une installation existante de QGIS<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%93_QGIS_portable\"><\/span>FAQ \u2013 QGIS portable<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>QGIS portable fonctionne-t-il sans installation ?<\/strong><br>Oui. Une version portable de QGIS fonctionne directement depuis un dossier sans installation sur Windows.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Peut-on utiliser QGIS portable sans droits administrateur ?<\/strong><br>Oui. C\u2019est l\u2019un des principaux avantages des versions portables.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>QGIS portable fonctionne-t-il sur une cl\u00e9 USB ?<\/strong><br>Oui. Il est possible d\u2019ex\u00e9cuter QGIS directement depuis une cl\u00e9 USB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quelle diff\u00e9rence entre QGIS portable et QGIS install\u00e9 ?<\/strong><br>La version portable ne modifie pas le syst\u00e8me et peut \u00eatre utilis\u00e9e sans installation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pourquoi QGIS portable est-il aussi volumineux ?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QGIS est un logiciel SIG tr\u00e8s complet qui inclut de nombreuses biblioth\u00e8ques g\u00e9ospatiales (<a href=\"https:\/\/www.sigterritoires.fr\/index.php\/cartes-enc-dans-qgis-avec-postgis1\/\">GDAL<\/a>, PROJ, Python, Qt\u2026). Ces d\u00e9pendances expliquent la taille relativement importante d\u2019une version portable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pourquoi QGIS portable affichait des erreurs Python ?<\/strong><br>Certaines versions pr\u00e9c\u00e9dentes pouvaient mal g\u00e9rer les chemins Windows ou l\u2019environnement Python. Ces probl\u00e8mes ont \u00e9t\u00e9 corrig\u00e9s dans cette version.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les versions <strong>QGIS portable pour Windows<\/strong> constituent une solution simple et efficace pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tester QGIS sans installation<\/li>\n\n\n\n<li>utiliser QGIS sans droits administrateur<\/li>\n\n\n\n<li>organiser des formations SIG<\/li>\n\n\n\n<li>distribuer un environnement QGIS pr\u00eat \u00e0 l\u2019emploi<\/li>\n\n\n\n<li>travailler depuis une cl\u00e9 USB.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Elles facilitent ainsi l\u2019acc\u00e8s au SIG et \u00e0 la cartographie avec QGIS.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>QGIS est l\u2019un des logiciels SIG (Syst\u00e8me d\u2019Information G\u00e9ographique) open source les plus utilis\u00e9s au monde. Il permet de visualiser, analyser et cartographier des donn\u00e9es g\u00e9ographiques avec une grande richesse d\u2019outils. De nombreux utilisateurs recherchent une&hellip;<\/p>\n","protected":false},"author":1,"featured_media":16498,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[62],"tags":[1903,4496,4500,58,4498,4494,1901],"class_list":["post-16502","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qgis-2","tag-cartographie","tag-logiciel-sig","tag-open-source-gis-fr","tag-qgis","tag-qgis-formation","tag-qgis-portable","tag-sig"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2026\/03\/qgis4.jpg?fit=2498%2C1247&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p6XU0A-4ia","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/16502","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/comments?post=16502"}],"version-history":[{"count":0,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/16502\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media\/16498"}],"wp:attachment":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media?parent=16502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/categories?post=16502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/tags?post=16502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}