Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

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。

Désinstallez ou supprimez des applications et des programmes dans l’application Paramètres.

If your Outlook.com account has been blocked, follow the instructions in this article to unblock it.

Note: Whether you set the toggle to Off or On, you'll still get the regular security updates as usual.The toggle determines how quickly you get the additional non-security updates, fixes, feature updates, and improvements. Want to learn about Windows monthly updates?

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

Windows で BitLocker 回復キーを見つけるためのさまざまな方法について説明し、BitLocker がシステムでどのようにアクティブ化されているかについて説明します。

Learn how to enter reading mode in Microsoft Edge and use Immersive Reader to hear webpages and PDFs read out loud.