Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

To find out if an app or program is installed in Windows 10, select Start > Settings > Apps.

Learn about the quotas and differences between Microsoft storage and email storage.

This step-by-step article describes how to add, modify, or delete registry subkeys and values by using a Registration Entries (.reg) file.

Learn how to troubleshoot Windows sign in issues, including problems signing in to your Windows device after upgrading.

Gezippte (komprimierte) Dateien belegen weniger Speicherplatz und können schneller auf andere Computer übertragen werden als unkomprimierte Dateien.

Learn how to cancel your Microsoft subscriptions such as Microsoft 365, Copilot Pro and Xbox. Troubleshoot issues if you can't cancel your subscription.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

了解如何使用 Android、iOS 或 Windows 设备在 Xbox 上玩云游戏。

Try it! Share files or photos with a link. With your files in OneDrive cloud storage, you can share them with others, control who can view or edit them, and work together at the same time. In your OneDrive file storage, select the files or photos you want to share, and then select Share.