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

Erfahren Sie, wie Sie die App „PC-Integritätsprüfung“ verwenden, um die Leistung Ihres Geräts zu verbessern.

Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.

Check the Xbox services, games, and apps for any service outages.

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

Learn how to play different type of CDs and DVDs in Windows Media Player.

了解如何在电脑或 Mac 上安装、重新安装或激活 Microsoft 365 或 Office 2019。

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.