FAQ sur Windows 10 et Windows 11 en mode S - Support Microsoft
Windows 11 en mode S n’est disponible que dans l’édition Windows 11 Famille, et les utilisateurs souhaitant installer des applications en dehors du Microsoft Store ou effectuer une mise à niveau à partir d’autres éditions doivent sortir définitivement du mode S, qui ne peut pas être inversé.
Protect your PC from potentially unwanted applications
Windows Security has reputation-based protection that can help protect your PC from potentially unwanted applications. Potentially unwanted app blocking was first introduced in the Windows 10 May 2020 update and is turned off by default for enterprise and consumer customers.
Error message: “Security Center service cannot be started”
Contains troubleshooting information for a problem in which the Security Center service can't be started.
Installing Microsoft Defender | Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Applicable à :
Microsoft Defender sur Android, Microsoft Defender sur iOS, Microsoft Defender sur Mac, Microsoft Defender sur Windows
How to start a scan for viruses or malware in Microsoft Defender
If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.
Applicable à :
Microsoft Defender sur Android, Microsoft Defender sur Mac, Microsoft Defender sur Windows
Scan an item with Windows Security - Microsoft Support
Windows Security (Windows Defender Security Center in previous versions of Windows) enables you to scan specific files and folders to make sure they're safe. You'll be notified immediately if any threats are found. To scan specific files or folders, right-click a file or folder, select Show more options, and then select Scan with Microsoft ...
Firewall and Network Protection in the Windows Security App
Windows Security shows you which type of network you're currently connected to. Usually, your device will only be connected to one network at a time. Select a network profile: Domain network, Private network, or Public network. Under Microsoft Defender Firewall, switch the setting to On to enable Windows Firewall.
Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
What's new in Windows Security | Microsoft Support
What's new in Windows Security Want to take advantage of the newest Windows Security features to help protect your PC? You'll find the latest information about Windows Security here. Microsoft Defender now includes identity theft monitoring!
Ways to install Windows 11 - Microsoft Support
Learn how to install Windows 11, including the recommended option of using the Windows Update page in Settings.