Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

So öffnen Sie die PC-Integritätsprüfung. Verwenden Sie in Windows „Suchen“ auf der Taskleiste, um nach „PC-Integritätsprüfung“ zu suchen, und wählen Sie die App dann aus der Ergebnisliste aus.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...

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

Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).