Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

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。

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 access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

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.

How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera

Learn what you can do if you're not receiving account aign-in verification codes.

Learn how to earn Microsoft Rewards points when you browse the web with Microsoft Edge, search on Bing.com, and more.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.