Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.

Une clé de produit. Une clé de produit de 25 caractères peut être nécessaire (non obligatoire pour les licences numériques). Pour obtenir de l’aide sur la recherche de la clé de produit, accédez à Rechercher votre clé de produit Windows.De nombreux appareils modernes contiennent la clé de produit incorporée dans le microprogramme de l’appareil.

Visio is a diagraming tool that makes it easy and intuitive to create flowcharts, diagrams, org charts, floor plans, engineering designs, and more by using modern templates with the familiar Office experience. On this page, you can access some of the top templates and sample diagrams available in Visio, or request ones that you want. To see the hundreds of templates and sample diagrams ...

Windows 设备可能会在不同时间获得新功能，因为 Microsoft 通过多种服务技术提供非安全更新、修补程序、改进和增强功能，包括受控功能推出 (CFR)。 如果你需要重启设备来完成更新，Windows 会通知你，你可以选择最适合你完成更新的时间。

Notes: Reinstalling Windows 11 using installation media while choosing to ‘Keep nothing’ (a clean install) will automatically enable reserved storage if the partition you reinstall Windows to is 20GB or larger. Reserved storage sets aside disk space to be used by updates, apps, temporary files, and system caches, thus improving the day-to-day function of your PC by ensuring that critical ...

Learn how to find your Windows product key for activation or when to use a digital license instead.

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Windows Update recommends a reinstall after an update installation fails. If an update fails to install because of problems related to system files or components, you might see the following message in the Windows Update page in Settings:. Reinstall your current version of Windows to repair system files and components.

To return to browsing without Internet Explorer mode, you can click Leave on the information bar at the top of the screen, or close your current tab and open a new tab in Microsoft Edge.

After setting up web protection, we'll set up anti-malware protection.To do this we need to ask for a couple more permissions. Access device storage. Microsoft Defender scans apps and files on your device to watch for possible threats.