{"id":7701,"date":"2026-09-21T01:25:49","date_gmt":"2026-09-20T23:25:49","guid":{"rendered":"https:\/\/foxmobile.fr\/?p=7701"},"modified":"2026-09-21T22:46:13","modified_gmt":"2026-09-21T20:46:13","slug":"pc-lent-causes-courantes","status":"publish","type":"post","link":"https:\/\/foxmobile.fr\/index.php\/2026\/09\/21\/pc-lent-causes-courantes\/","title":{"rendered":"PC lent : 5 causes courantes (et comment les r\u00e9soudre)"},"content":{"rendered":"\n

Un PC qui met une minute \u00e0 ouvrir un simple dossier, un d\u00e9marrage qui n’en finit pas : la lenteur s’installe souvent progressivement, jusqu’\u00e0 devenir insupportable. Voici les 5 causes les plus fr\u00e9quentes, et comment savoir laquelle concerne votre ordinateur.<\/p>\n\n\n\n

1. Le disque dur est plein ou vieillissant<\/h2>\n\n\n\n

Un disque dur classique (HDD) rempli \u00e0 plus de 90 % ralentit fortement, et un disque de plusieurs ann\u00e9es accumule des micro-d\u00e9faillances. C’est la cause la plus courante sur les PC de plus de 4-5 ans : passer sur un disque SSD divise g\u00e9n\u00e9ralement le temps de d\u00e9marrage par 3 \u00e0 5.<\/p>\n\n\n\n

2. Trop de programmes se lancent au d\u00e9marrage<\/h2>\n\n\n\n

Chaque logiciel install\u00e9 a tendance \u00e0 s’ajouter au d\u00e9marrage de Windows sans qu’on le demande. Au bout de quelques ann\u00e9es, une dizaine de programmes peuvent se lancer en m\u00eame temps que l’ordinateur, saturant le processeur avant m\u00eame que vous ayez ouvert quoi que ce soit.<\/p>\n\n\n\n

3. Un virus ou logiciel ind\u00e9sirable tourne en arri\u00e8re-plan<\/h2>\n\n\n\n

Un ralentissement soudain, sans changement d’usage, est souvent le signe d’un logiciel malveillant qui consomme des ressources en continu. Un ventilateur qui tourne fort m\u00eame sans rien faire est un signe qui doit alerter.<\/p>\n\n\n\n

4. La m\u00e9moire (RAM) n’est plus suffisante<\/h2>\n\n\n\n

Les logiciels et les pages web sont de plus en plus gourmands. Un PC avec 4 Go de RAM, confortable il y a quelques ann\u00e9es, peine aujourd’hui \u00e0 ouvrir plusieurs onglets sans ralentir. Passer \u00e0 8 ou 16 Go change souvent radicalement le ressenti.<\/p>\n\n\n\n

5. La poussi\u00e8re fait chauffer le processeur<\/h2>\n\n\n\n

Sur un PC portable en particulier, la poussi\u00e8re accumul\u00e9e dans le ventilateur emp\u00eache l’air de circuler. Le processeur chauffe, et l’ordinateur r\u00e9duit automatiquement sa vitesse pour se prot\u00e9ger. Un nettoyage interne suffit souvent \u00e0 retrouver des performances normales.<\/p>\n\n\n\n

Nettoyer, upgrader ou changer de PC ?<\/h2>\n\n\n\n

Dans la grande majorit\u00e9 des cas, un nettoyage logiciel combin\u00e9 \u00e0 un passage sur SSD et un ajout de RAM redonne une seconde vie \u00e0 un PC pour une fraction du prix d’un neuf. Changer d’ordinateur ne devient pertinent que si le processeur lui-m\u00eame est tr\u00e8s ancien ou si plusieurs composants sont en fin de vie en m\u00eame temps.<\/p>\n\n\n\n

FoxMobile, diagnostic et optimisation PC \u00e0 Mulhouse<\/h2>\n\n\n\n

Nous posons un diagnostic gratuit pour identifier pr\u00e9cis\u00e9ment la ou les causes du ralentissement, sur PC portables<\/a> toutes marques (Asus, Lenovo, HP, Dell, MSI, Acer, MacBook). Nettoyage interne, passage sur SSD, ajout de RAM : nous vous proposons la solution la plus utile pour votre usage, sans vous vendre plus que n\u00e9cessaire.<\/p>\n","protected":false},"excerpt":{"rendered":"

Un PC qui met une minute \u00e0 ouvrir un simple dossier, un d\u00e9marrage qui n’en finit pas : la lenteur s’installe souvent progressivement, jusqu’\u00e0 devenir insupportable. Voici les 5 causes les plus fr\u00e9quentes, et comment savoir laquelle concerne votre ordinateur. 1. Le disque dur est plein ou vieillissant Un disque dur classique (HDD) rempli \u00e0<\/p>\n

Read More <\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":7829,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[239],"tags":[],"class_list":["post-7701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-conseils-astuces"],"yoast_head":"\nPC lent : 5 causes courantes et comment les r\u00e9soudre<\/title>\n<meta name=\"description\" content=\"PC qui rame, d\u00e9marrage interminable ? 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