When your camera isn't working in Windows 11, it might be missing drivers after a recent update. It's also possible that your antivirus program is blocking the camera, your privacy settings don't allow camera access for some apps, or there's a problem with the app you want to use.

Learn how to change your notification settings and quick actions using the notification center in Windows.

通常とは異なるアクティビティについてのメールを受け取った場合、Microsoft アカウントの最近のサインイン アクティビティを確認します。

Get troubleshooting tips if you run into problems downloading, installing, or updating Microsoft Edge.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Learn how to sign in, sign out, lock, and switch user account in Windows.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Learn how to use the Analysis ToolPak to perform complex Excel data analysis. Explore the various data analysis functions available in Excel.

Découvrez comment ajouter des comptes d’utilisateur dans Windows 10 et Windows 11. Chaque utilisateur dispose de fichiers séparés, de ses propres favoris de navigateur et d’un bureau privé grâce à son compte.

Find out how to submit a request for a refund for a purchase of digital Xbox content.