{"id":3224,"date":"2026-02-24T10:48:00","date_gmt":"2026-02-24T08:48:00","guid":{"rendered":"https:\/\/computershop.eu\/blog\/?p=3214"},"modified":"2026-02-25T10:50:50","modified_gmt":"2026-02-25T08:50:50","slug":"problemes-de-pc-et-solutions-pratiques-en-2026-guide-complet","status":"publish","type":"post","link":"https:\/\/computershop.eu\/blog\/fr\/problemes-de-pc-et-solutions-pratiques-en-2026-guide-complet","title":{"rendered":"Probl\u00e8mes de PC et solutions pratiques en 2026 : guide complet"},"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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p><strong>Lorsque l&#8217;ordinateur ne fonctionne pas comme il le devrait<\/strong>, il peut \u00eatre difficile d&#8217;identifier rapidement la source du probl\u00e8me. Que vous soyez utilisateur de bureau, gamer ou cr\u00e9ateur de contenu, certaines erreurs se produisent fr\u00e9quemment. Dans cet article, vous d\u00e9couvrirez les <strong>probl\u00e8mes de PC les plus courants et des solutions efficaces<\/strong> pour les syst\u00e8mes Windows, mises \u00e0 jour pour 2026, avec des conseils clairs et \u00e9tape par \u00e9tape.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Le PC ne s&#8217;allume pas<\/h3>\n\n\n\n<p><strong>Sympt\u00f4mes :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L&#8217;ordinateur ne r\u00e9pond pas \u00e0 la pression du bouton d&#8217;alimentation<\/li>\n\n\n\n<li>Les ventilateurs se mettent en marche, mais aucune image n&#8217;appara\u00eet sur le moniteur<\/li>\n<\/ul>\n\n\n\n<p><strong>Causes possibles :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Probl\u00e8mes avec l&#8217;alimentation<\/li>\n\n\n\n<li>RAM d\u00e9fectueuse<\/li>\n\n\n\n<li>Carte graphique non fonctionnelle.<\/li>\n<\/ul>\n\n\n\n<p><strong>Solutions rapides :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00e9rifiez les c\u00e2bles d&#8217;alimentation et les connecteurs<\/li>\n\n\n\n<li>Retirez et r\u00e9ins\u00e9rez les modules de RAM<\/li>\n\n\n\n<li>Essayez un autre moniteur ou c\u00e2ble<\/li>\n\n\n\n<li>Testez la carte graphique dans un autre syst\u00e8me.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Probl\u00e8mes de PC: erreur d&#8217;arr\u00eat Windows &#8211; \u00e9cran bleu (BSOD) fr\u00e9quent<\/h3>\n\n\n\n<p>L&#8217;\u00e9cran bleu (Blue Screen Of Death) est l&#8217;un des \u00e9v\u00e9nements les plus frustrants pour un PC.<\/p>\n\n\n\n<p><strong>Causes probables :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drivers incompatibles ou installations corrompues<\/li>\n\n\n\n<li>Surchauffe<\/li>\n\n\n\n<li>Probl\u00e8mes mat\u00e9riels.<\/li>\n<\/ul>\n\n\n\n<p><strong>Que pouvez-vous faire:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Mettre \u00e0 jour les drivers via le Gestionnaire de p\u00e9riph\u00e9riques ou des applications officielles (par exemple NVIDIA\/AMD pour le GPU)<\/li>\n\n\n\n<li>Nettoyez les ventilateurs et le radiateur (CPU\/GPU) de la poussi\u00e8re<\/li>\n\n\n\n<li>Ex\u00e9cutez <a href=\"https:\/\/www.microsoft.com\/en-us\/surface\/do-more-with-surface\/how-to-use-windows-memory-diagnostic\" target=\"_blank\" rel=\"noreferrer noopener\">Windows Memory Diagnostic<\/a> ou CHKDSK.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">3. Disque dur ou SSD lent<\/h3>\n\n\n\n<p><strong>Signes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Transfert de fichiers lent<\/li>\n\n\n\n<li>Applications bloqu\u00e9es<\/li>\n\n\n\n<li>D\u00e9marrage lent<\/li>\n<\/ul>\n\n\n\n<p><strong>Causes fr\u00e9quentes :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HDD ancien ou endommag\u00e9<\/li>\n\n\n\n<li>SSD avec firmware obsol\u00e8te<\/li>\n\n\n\n<li>Manque d&#8217;espace de stockage.<\/li>\n<\/ul>\n\n\n\n<p><strong>Rem\u00e8des pratiques:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ex\u00e9cutez la commande <code>chkdsk \/f<\/code> dans l&#8217;invite de commande<\/li>\n\n\n\n<li>Mettez \u00e0 jour le firmware de l&#8217;SSD<\/li>\n\n\n\n<li>D\u00e9placez de gros fichiers sur un HDD secondaire.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Probl\u00e8mes de PC WiFi &#8211; connexion Internet<\/h3>\n\n\n\n<p>Que vous utilisiez le Wi-Fi ou un c\u00e2ble :<\/p>\n\n\n\n<p><strong>Causes courantes :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drivers de r\u00e9seau obsol\u00e8tes<\/li>\n\n\n\n<li>Interf\u00e9rences Wi-Fi<\/li>\n\n\n\n<li>Param\u00e8tres DNS non optimis\u00e9s.<\/li>\n<\/ul>\n\n\n\n<p><strong>Solutions :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mettez \u00e0 jour le driver de l&#8217;adaptateur r\u00e9seau<\/li>\n\n\n\n<li>Red\u00e9marrez le routeur\/modem<\/li>\n\n\n\n<li>Utilisez des DNS rapides (ex. DNS Google : 8.8.8.8).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. Probl\u00e8mes de PC &#8211; le syst\u00e8me est lent apr\u00e8s la derni\u00e8re mise \u00e0 jour de Windows<\/h3>\n\n\n\n<p>Parfois, les mises \u00e0 jour de Windows ou les nouveaux drivers install\u00e9s peuvent causer une baisse de performance.<\/p>\n\n\n\n<p><strong>Ce que vous devez v\u00e9rifier:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les ressources CPU\/RAM occup\u00e9es par un processus<\/li>\n\n\n\n<li>Les services de param\u00e8tres syst\u00e8me lanc\u00e9s au d\u00e9marrage<\/li>\n\n\n\n<li>Espaces libres sur le disque.<\/li>\n<\/ul>\n\n\n\n<p><strong>Conseils utiles:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00e9sactivez les applications inutiles au d\u00e9marrage<\/li>\n\n\n\n<li>Ex\u00e9cutez <code>Disk Cleanup<\/code> et <code>Defrag<\/code> (uniquement pour HDD m\u00e9canique)<\/li>\n\n\n\n<li>Si le probl\u00e8me survient apr\u00e8s une mise \u00e0 jour de Windows, vous pouvez revenir \u00e0 la version pr\u00e9c\u00e9dente.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6. Probl\u00e8mes de PC: virus et malware &#8211; sympt\u00f4mes et solutions<\/h3>\n\n\n\n<p><strong>Les sympt\u00f4mes peuvent inclure:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Publicit\u00e9s inattendues<\/li>\n\n\n\n<li>Redirections dans le navigateur<\/li>\n\n\n\n<li>Processus suspects dans le Gestionnaire des t\u00e2ches.<\/li>\n<\/ul>\n\n\n\n<p><strong>Solutions efficaces:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Analysez avec un antivirus \u00e0 jour<\/li>\n\n\n\n<li>Utilisez des outils anti-malware (ex. Malwarebytes)<\/li>\n\n\n\n<li>R\u00e9initialisez le navigateur aux param\u00e8tres d&#8217;usine.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Comment \u00e9viter les probl\u00e8mes de PC en 2026<\/h2>\n\n\n\n<p><strong>Pour une performance et une stabilit\u00e9 maximales:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maintenez les drivers et Windows \u00e0 jour<\/li>\n\n\n\n<li>Assurez-vous d&#8217;un nettoyage physique p\u00e9riodique des composants<\/li>\n\n\n\n<li>Surveillez les temp\u00e9ratures<\/li>\n\n\n\n<li>Utilisez des outils antivirus et anti-malware.<\/li>\n<\/ul>\n\n\n\n<p>Que vous ayez un <a href=\"https:\/\/computershop.eu\/fr\/ordinateurs\/ordinateurs-d-occasion\" target=\"_blank\" rel=\"noreferrer noopener\">PC ancien<\/a> ou un <a href=\"https:\/\/computershop.eu\/fr\/ordinateurs\/ordinateurs-1\">nouveau ordinateur<\/a>, <strong>un diagnostic correct et une intervention rapide<\/strong> font la diff\u00e9rence entre un petit probl\u00e8me et un syst\u00e8me non fonctionnel.<\/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%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet&amp;t=Probl%C3%A8mes+de+PC+et+solutions+pratiques+en+2026+%3A+guide+complet+<+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%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet&amp;text=Probl%C3%A8mes+de+PC+et+solutions+pratiques+en+2026+%3A+guide+complet+<+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%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet&amp;media=https%3A%2F%2Fcomputershop.eu%2Fblog%2Fwp-content%2Fuploads%2F2026%2F02%2FPC-Issues-300x200.webp&amp;description=Lorsque+l%27ordinateur+ne+fonctionne+pas+comme+il+le+devrait%2C+il+peut+%C3%AAtre+difficile+d%27identifier+rapidement+la+source+du+probl%C3%A8me.+Que+vous+soyez+utilisateur+de+bureau%2C+gamer+ou+cr%C3%A9ateur+de+contenu%2C+certaines+erreurs+se+produisent+fr%C3%A9quemment.+Dans+cet+article%2C+vous+d%C3%A9couvrirez%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%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet&amp;title=Probl%C3%A8mes+de+PC+et+solutions+pratiques+en+2026+%3A+guide+complet&amp;source=Refurbished+Computers+-+ComputerShop.EU&amp;summary=Lorsque+l%27ordinateur+ne+fonctionne+pas+comme+il+le+devrait%2C+il+peut+%C3%AAtre+difficile+d%27identifier+rapidement+la+source+du+probl%C3%A8me.+Que+vous+soyez+utilisateur+de+bureau%2C+gamer+ou+cr%C3%A9ateur+de+contenu%2C+certaines+erreurs+se+produisent+fr%C3%A9quemment.+Dans+cet+article%2C+vous+d%C3%A9couvrirez%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%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet\" 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:+Probl%C3%A8mes+de+PC+et+solutions+pratiques+en+2026+%3A+guide+complet&amp;body=https%3A%2F%2Fcomputershop.eu%2Fblog%2Ffr%2Fproblemes-de-pc-et-solutions-pratiques-en-2026-guide-complet\" 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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Lorsque l&#8217;ordinateur ne fonctionne pas comme il le devrait, il peut \u00eatre difficile d&#8217;identifier rapidement la source du probl\u00e8me. Que vous soyez utilisateur de bureau, gamer ou cr\u00e9ateur de contenu, certaines erreurs se produisent fr\u00e9quemment. Dans cet article, vous d\u00e9couvrirez &hellip; <a href=\"https:\/\/computershop.eu\/blog\/fr\/problemes-de-pc-et-solutions-pratiques-en-2026-guide-complet\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":3220,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[178],"tags":[11190,498,11091,2737,351,645,11124,11127,11130],"class_list":["post-3224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-bsod-fr","tag-composants-pc","tag-diagnostic-pc","tag-materiel","tag-ordinateur-portable","tag-pc-fr","tag-problemes-de-pc","tag-problemes-windows","tag-solutions-problemes-de-pc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Probl\u00e8mes de PC et solutions pratiques en 2026 : guide complet - 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