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。

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

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Discusses the release of the Malicious Software Removal Tool (MSRT) to help remove specific prevalent malicious software from Windows-based computers.

Learn how to manage background activity for apps to help save battery power in Windows.

There are some solutions you can try. First steps if your Surface Type Cover or Keyboard doesn't work. To try to resolve these issues, you can begin by following the steps below to get the latest updates, detach the Type cover or keyboard, force a restart, reattach the Type Cover or Keyboard, or confirm connectivity.. Get the latest updates

The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.

Learn how to troubleshoot and use the clipboard in Windows to paste multiple items, pin items, and sync your clipboard to the cloud.

Deinstallieren oder entfernen Sie Apps und Programme in der Einstellungs-App.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.