{"id":5022,"date":"2026-06-11T14:53:02","date_gmt":"2026-06-11T12:53:02","guid":{"rendered":"https:\/\/computershop.eu\/blog\/?p=5010"},"modified":"2026-06-11T15:02:47","modified_gmt":"2026-06-11T13:02:47","slug":"comment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque","status":"publish","type":"post","link":"https:\/\/computershop.eu\/blog\/fr\/comment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque","title":{"rendered":"Comment trouver les fichiers dupliqu\u00e9s et r\u00e9cup\u00e9rer de l&#8217;espace disque"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p class=\"wp-block-paragraph\"><strong>L&#8217;espace de stockage se remplit rapidement, m\u00eame sur les ordinateurs modernes.<\/strong> Des photos t\u00e9l\u00e9charg\u00e9es plusieurs fois, des sauvegardes oubli\u00e9es dans divers dossiers, des fichiers dupliqu\u00e9s et des collections multim\u00e9dias enregistr\u00e9es \u00e0 plusieurs emplacements peuvent occuper des dizaines, voire des centaines de gigaoctets sans que vous ne vous en rendiez compte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous vous demandez comment trouver des fichiers dupliqu\u00e9s et r\u00e9cup\u00e9rer de l&#8217;espace sur votre PC, la bonne nouvelle est qu&#8217;il existe des m\u00e9thodes simples et s\u00fbres pour Windows 10 et Windows 11. Dans cet article, vous d\u00e9couvrirez comment identifier les fichiers dupliqu\u00e9s, quels outils vous pouvez utiliser et comment lib\u00e9rer de l&#8217;espace sans risquer de supprimer des donn\u00e9es importantes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi ces fichiers dupliqu\u00e9s apparaissent-ils ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dans la plupart des cas, les fichiers dupliqu\u00e9s sont cr\u00e9\u00e9s sans intention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les causes les plus fr\u00e9quentes sont :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u00e9l\u00e9chargement du m\u00eame fichier plusieurs fois.<\/li>\n\n\n\n<li>Copie des photos du t\u00e9l\u00e9phone dans diff\u00e9rents dossiers.<\/li>\n\n\n\n<li>R\u00e9alisation de sauvegardes manuelles.<\/li>\n\n\n\n<li>Synchronisation d\u00e9faillante entre services cloud.<\/li>\n\n\n\n<li>Copie de documents entre PC, SSD externe et cl\u00e9 USB.<\/li>\n\n\n\n<li>\u00c9dition d&#8217;images et sauvegarde de plusieurs versions similaires.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s quelques ann\u00e9es d&#8217;utilisation, ces copies peuvent occuper des dizaines de Go et compliquer l&#8217;organisation des fichiers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment v\u00e9rifier si vous avez des fichiers dupliqu\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avant de supprimer quoi que ce soit, il est important de comprendre que deux fichiers dupliqu\u00e9s ne sont pas toujours identiques. Par exemple :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vacanta.jpg<\/li>\n\n\n\n<li>Vacanta (1).jpg<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ils peuvent \u00eatre des duplicatas parfaits ou des images diff\u00e9rentes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour cette raison, les meilleures applications comparent la taille, le contenu et la signature num\u00e9rique des fichiers, pas seulement leurs noms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e9thode 1 : Utilisez la fonction de recherche dans Windows<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour un nombre r\u00e9duit de fichiers, vous pouvez commencer avec les outils int\u00e9gr\u00e9s dans Windows.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00c9tapes :<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ouvrez l&#8217;Explorateur de fichiers.<\/li>\n\n\n\n<li>Acc\u00e9dez au dossier que vous souhaitez v\u00e9rifier.<\/li>\n\n\n\n<li>Dans le champ de recherche, entrez : <code>*.jpg<\/code> ou <code>*.pdf<\/code><\/li>\n\n\n\n<li>Triez les r\u00e9sultats par :\n<ul class=\"wp-block-list\">\n<li>Nom<\/li>\n\n\n\n<li>Taille<\/li>\n\n\n\n<li>Date de modification<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Cette m\u00e9thode est gratuite, mais elle devient difficile lorsque vous avez des dizaines de milliers de fichiers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e9thode 2 : Utilisez une application d\u00e9di\u00e9e \u00e0 la d\u00e9tection des doublons<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour des r\u00e9sultats rapides et pr\u00e9cis, il est recommand\u00e9 d&#8217;utiliser un programme sp\u00e9cialis\u00e9. Parmi les options les plus populaires en 2026, on trouve :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/apps.microsoft.com\/detail\/9nflq6q6wt1p\" target=\"_blank\" rel=\"noreferrer noopener\">Duplicates Cleaner<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/alldup.de\/en\/alldup\/download.php\" target=\"_blank\" rel=\"noreferrer noopener\">AllDup<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/dupeguru.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">dupeGuru<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/apps.microsoft.com\/detail\/xp89qvzxxp32ft\" target=\"_blank\" rel=\"noreferrer noopener\">Auslogics Duplicate File Finder<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces applications peuvent analyser :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Photos<\/li>\n\n\n\n<li>Documents Office<\/li>\n\n\n\n<li>PDFs<\/li>\n\n\n\n<li>Fichiers audio<\/li>\n\n\n\n<li>Fichiers vid\u00e9o<\/li>\n\n\n\n<li>Archives ZIP et RAR<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">De plus, elles peuvent identifier des doublons m\u00eame si les fichiers ont des noms diff\u00e9rents.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment fonctionne un scanner de fichiers dupliqu\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le processus est simple :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>S\u00e9lectionnez le lecteur ou le dossier souhait\u00e9.<\/li>\n\n\n\n<li>Choisissez les types de fichiers \u00e0 analyser.<\/li>\n\n\n\n<li>Lancez l&#8217;analyse.<\/li>\n\n\n\n<li>L&#8217;application g\u00e9n\u00e8re une liste de toutes les copies identifi\u00e9es.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Dans la plupart des cas, vous verrez :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Emplacement des fichiers.<\/li>\n\n\n\n<li>Taille occup\u00e9e.<\/li>\n\n\n\n<li>Nombre de copies existantes.<\/li>\n\n\n\n<li>Espaces pouvant \u00eatre r\u00e9cup\u00e9r\u00e9s.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ne supprimez pas automatiquement tous les r\u00e9sultats sans v\u00e9rification. Certaines applications ou jeux utilisent des fichiers identiques \u00e0 diff\u00e9rents emplacements et ceux-ci ne doivent pas \u00eatre supprim\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O\u00f9 trouver le plus de fichiers dupliqu\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D&#8217;apr\u00e8s l&#8217;exp\u00e9rience des utilisateurs et des techniciens IT, les emplacements les plus probl\u00e9matiques sont :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dossier T\u00e9l\u00e9chargements<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux utilisateurs t\u00e9l\u00e9chargent le m\u00eame document ou programme plusieurs fois.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Biblioth\u00e8que Images<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les photos synchronis\u00e9es depuis le t\u00e9l\u00e9phone et celles sauvegard\u00e9es dans le cloud sont une source fr\u00e9quente de doublons.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Bureau<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les fichiers temporairement d\u00e9plac\u00e9s sur le bureau sont souvent oubli\u00e9s et copi\u00e9s par la suite dans d&#8217;autres dossiers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Disques de stockage externes<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les SSD et HDD externes contiennent souvent plusieurs copies de sauvegarde des m\u00eames donn\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Combien d&#8217;espace pouvez-vous r\u00e9cup\u00e9rer ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats varient d&#8217;un utilisateur \u00e0 l&#8217;autre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En pratique :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les utilisateurs ordinaires r\u00e9cup\u00e8rent entre 5 et 20 Go.<\/li>\n\n\n\n<li>Celles et ceux qui travaillent avec des photos et des vid\u00e9os peuvent r\u00e9cup\u00e9rer entre 50 et 200 Go.<\/li>\n\n\n\n<li>Dans certains cas, les biblioth\u00e8ques multim\u00e9dias contiennent des centaines de Go de fichiers dupliqu\u00e9s.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un contr\u00f4le annuel peut pr\u00e9venir <a href=\"https:\/\/computershop.eu\/blog\/fr\/problemes-de-pc-et-solutions-pratiques-en-2026-guide-complet\" target=\"_blank\" rel=\"noreferrer noopener\">l&#8217;accumulation inutile de donn\u00e9es<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Attention avant de supprimer<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour \u00e9viter la perte accidentelle d&#8217;informations :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cr\u00e9ez un point de restauration Windows.<\/li>\n\n\n\n<li>Faites une sauvegarde des documents importants.<\/li>\n\n\n\n<li>V\u00e9rifiez manuellement les fichiers volumineux avant de les supprimer.<\/li>\n\n\n\n<li>Ne supprimez pas de fichiers dans les dossiers syst\u00e8me Windows.<\/li>\n\n\n\n<li>\u00c9vitez de supprimer des fichiers dans Program Files si vous ne connaissez pas leur r\u00f4le.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Une bonne r\u00e8gle est de d\u00e9placer d&#8217;abord les fichiers suspects dans un dossier temporaire et de les supprimer d\u00e9finitivement apr\u00e8s quelques jours.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Autres m\u00e9thodes pour lib\u00e9rer de l&#8217;espace dans Windows<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En plus de la suppression des doublons, vous pouvez r\u00e9cup\u00e9rer de l&#8217;espace en :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Supprimant les fichiers temporaires.<\/li>\n\n\n\n<li>Vider la Corbeille.<\/li>\n\n\n\n<li>D\u00e9sinstallant des applications inutilis\u00e9es.<\/li>\n\n\n\n<li>Nettoyant le dossier T\u00e9l\u00e9chargements.<\/li>\n\n\n\n<li>Activant Storage Sense dans Windows 11.<\/li>\n\n\n\n<li>D\u00e9pla\u00e7ant les photos et vid\u00e9os dans le cloud ou sur un SSD externe.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dans de nombreuses situations, vous pouvez r\u00e9cup\u00e9rer entre quelques et plusieurs dizaines de gigaoctets sans supprimer de documents importants ou acheter un nouveau SSD.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour de meilleurs r\u00e9sultats, v\u00e9rifiez r\u00e9guli\u00e8rement les dossiers T\u00e9l\u00e9chargements, Images et disques externes, et avant de supprimer, assurez-vous d&#8217;avoir soigneusement analys\u00e9 les fichiers identifi\u00e9s. Une session de nettoyage de 15 \u00e0 20 minutes peut lib\u00e9rer \u00e9tonnamment beaucoup d&#8217;espace et rendre l&#8217;organisation des donn\u00e9es beaucoup plus simple.<\/p>\n\t<div class=\"quickshare-container\">\r\n\t<ul class=\"quickshare-genericons monochrome quickshare-effect-expand\">\r\n\t\t<li class=\"quickshare-share\">Share:<\/li> \r\n\t\t<li><a href=\"https:\/\/facebook.com\/sharer.php?u=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque&amp;t=Comment+trouver+les+fichiers+dupliqu%C3%A9s+et+r%C3%A9cup%C3%A9rer+de+l%26%238217%3Bespace+disque+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Facebook\"><span class=\"quickshare-facebook\">Facebook<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque&amp;text=Comment+trouver+les+fichiers+dupliqu%C3%A9s+et+r%C3%A9cup%C3%A9rer+de+l%26%238217%3Bespace+disque+<+Refurbished+Computers+-+ComputerShop.EU\" target=\"_blank\" title=\"Share on Twitter\"><span class=\"quickshare-twitter\">Twitter<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque&amp;media=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fwp-content%2Fuploads%2F2026%2F06%2Fduplicate-files-300x157.png&amp;description=L%27espace+de+stockage+se+remplit+rapidement%2C+m%C3%AAme+sur+les+ordinateurs+modernes.+Des+photos+t%C3%A9l%C3%A9charg%C3%A9es+plusieurs+fois%2C+des+sauvegardes+oubli%C3%A9es+dans+divers+dossiers%2C+des+fichiers+dupliqu%C3%A9s+et+des+collections+multim%C3%A9dias+enregistr%C3%A9es+%C3%A0+plusieurs+emplacements+peuvent+occuper+des+dizaines%2C+voire+des+centaines%26hellip%3B\" target=\"_blank\" title=\"Share on Pinterest\"><span class=\"quickshare-pinterest\">Pinterest<\/span><\/a><\/li>\t\t<li><a href=\"http:\/\/linkedin.com\/shareArticle?mini=true&amp;url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque&amp;title=Comment+trouver+les+fichiers+dupliqu%C3%A9s+et+r%C3%A9cup%C3%A9rer+de+l%26%238217%3Bespace+disque&amp;source=Refurbished+Computers+-+ComputerShop.EU&amp;summary=L%27espace+de+stockage+se+remplit+rapidement%2C+m%C3%AAme+sur+les+ordinateurs+modernes.+Des+photos+t%C3%A9l%C3%A9charg%C3%A9es+plusieurs+fois%2C+des+sauvegardes+oubli%C3%A9es+dans+divers+dossiers%2C+des+fichiers+dupliqu%C3%A9s+et+des+collections+multim%C3%A9dias+enregistr%C3%A9es+%C3%A0+plusieurs+emplacements+peuvent+occuper+des+dizaines%2C+voire+des+centaines%26hellip%3B\" title=\"Share on Linkedin\" target=\"_blank\"><span class=\"quickshare-linkedin\">Linkedin<\/span><\/a><\/li>\t\t<li><a href=\"https:\/\/plus.google.com\/share?url=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque\" target=\"_blank\" title=\"Share on Google+\"><span class=\"quickshare-googleplus\">Google+<\/span><\/a><\/li>\t\t\t\t\t\t\t\t<li><a href=\"mailto:?subject=Refurbished+Computers+-+ComputerShop.EU:+Comment+trouver+les+fichiers+dupliqu%C3%A9s+et+r%C3%A9cup%C3%A9rer+de+l%26%238217%3Bespace+disque&amp;body=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fcomment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque\" target=\"_blank\" title=\"Share via Email\"><span class=\"quickshare-email\">Email<\/span><\/a><\/li>\t<\/ul>\r\n\t<\/div>\r\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>L&#8217;espace de stockage se remplit rapidement, m\u00eame sur les ordinateurs modernes. Des photos t\u00e9l\u00e9charg\u00e9es plusieurs fois, des sauvegardes oubli\u00e9es dans divers dossiers, des fichiers dupliqu\u00e9s et des collections multim\u00e9dias enregistr\u00e9es \u00e0 plusieurs emplacements peuvent occuper des dizaines, voire des centaines &hellip; <a href=\"https:\/\/computershop.eu\/blog\/fr\/comment-trouver-les-fichiers-en-double-et-recuperer-de-lespace-disque\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":5017,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[178],"tags":[18762,18753,18750,18756,7916,18759],"class_list":["post-5022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-espace-de-stockage","tag-fichiers-en-double","tag-liberer-de-lespace-ssd","tag-optimisation-de-lespace-pc","tag-optimisation-pc","tag-recuperation-despace-disque"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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