Microsoft n’a pas réduit les exigences minimales pour Windows 11
En décembre 2024, Microsoft a apporté une mise à jour à son document de support concernant l’installation de Windows 11 sur des appareils qui ne respectent pas les exigences minimales. Contrairement à certaines rumeurs, ces exigences n’ont pas été réduites, confirmant ainsi la nécessité d’une CPU Intel Kaby Lake de huitième génération ou supérieure, une AMD Ryzen 2000 ou ultérieure, ainsi que 4 Go de RAM et un TPM 2.0. Bien qu’il soit techniquement possible d’installer Windows 11 sur des machines non compatibles en modifiant les paramètres de registre, Microsoft rappelle que ces installations ne seront pas supportées et pourraient ne pas recevoir les mises à jour essentielles, ce qui présente des risques de compatibilité.
En décembre 2024, Microsoft a modifié les recommandations concernant l’installation de Windows 11, mais n’a pas allégé les exigences minimales pour son fonctionnement. L’entreprise a simplement ajouté une décaration de non-responsabilité, faisant allusion à la possibilité d’installer Windows 11 sur des machines non conformes aux exigences, tout en mettant en garde contre les problèmes de compatibilité et l’absence de support et d’mises à jour pour ces installations. Microsoft maintient que l’installation officielle est réservée aux systèmes répondant à des critères spécifiques, malgré quelques moyens de contourner ces restrictions.
Sommaire
- 1 Les exigences minimales pour Windows 11 : un rappel
- 2 Installer Windows 11 sur des systèmes non conformes : Avis de Microsoft
- 3 Les conséquences d’une installation non supportée
- 4 Continuer à recevoir les mises à jour sur un système non conforme
- 5 Notes supplémentaires sur les installations non conformes
- 6 Comparaison des Exigences Minimales de Windows 11
Les exigences minimales pour Windows 11 : un rappel
Microsoft a clarifié que pour installer officiellement Windows 11, un ordinateur doit posséder un processeur Intel de huitième génération Kaby Lake ou supérieur, ou un processeur AMD Ryzen 2000 ou ultérieur. De plus, 4 Go de RAM, une puce TPM 2.0, un BIOS UEFI avec Secure Boot activé sont requis. Ces spécifications assurent une expérience utilisateur optimale et minimisent les risques d’incompatibilité.
Installer Windows 11 sur des systèmes non conformes : Avis de Microsoft
Microsoft permet toutefois une installation de Windows 11 sur des appareils qui ne satisfont pas les exigences par le biais d’une modification de la base de registre Windows, notamment la clé
HKLMSYSTEMSetupMoSetupAllowUpgradesWithUnsupportedTPMOrCPU
. Cette astuce technique permet d’installer le système d’exploitation sur des configurations dépourvues de TPM 2.0 et/ou de processeurs Kaby Lake ou Ryzen 2000. Cependant, une telle installation peut entraîner l’absence de support officiel et d’mise à jour.
Les conséquences d’une installation non supportée
En poursuivant une installation de Windows 11 sans respecter les exigences minimales, les utilisateurs exposent leurs appareils à divers problèmes de compatibilité et à une absence de reprise des mises à jour officielles. Microsoft souligne que ces installations non conformes risquent de ne pas recevoir les correctifs de sécurité mensuels. Bien que ces mises à jour aient jusqu’ici été délivrées aux systèmes non compatibles, rien n’assure qu’elles le seront à l’avenir.
Continuer à recevoir les mises à jour sur un système non conforme
Microsoft avertit que les appareils non conformes pourraient ne pas recevoir les mises à jour des nouvelles fonctionnalités annuelles via Windows Update. En d’autres termes, un système installé avec Windows 11 23H2 pourrait ne pas pouvoir passer automatiquement à Windows 11 24H2 ou à des versions plus récentes. Des installations manuelles restent possibles, mais exigent une intervention utilisateur.
Notes supplémentaires sur les installations non conformes
Il est important de noter que les exigences spécifiques de Windows 11 24H2, et des versions ultérieures, peuvent imposer d’autres barrières. Par exemple, les systèmes doivent comporter des processeurs 64 bits et supporter certaines instructions, comme les extensions SSE4.2. Microsoft a réaffirmé les exigences matérielles pour chaque nouvelle version afin de garantir la compatibilité et les performances optimales du système d’exploitation.
Comparaison des Exigences Minimales de Windows 11
Composant | Exigence Minimale |
Processeur | Intel Kaby Lake 8e génération ou AMD Ryzen 2000 |
Mémoire RAM | 4 GB |
Espace de Stockage | 64 GB |
TPM | TPM 2.0 requis |
BIOS | UEFI avec Secure Boot activé |
Compatibilité 64-bit | Nécessaire |
Support Mises à Jour | Pas garanti sur le matériel non conforme |
Méthodes d’Installation | Installation forcée possible sans conformité |
Garantie | Non couverte si non conforme |
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