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

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

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

了解如何安装 Windows 11，包括在“设置”中访问 Windows 更新页的建议选项。

System requirements and setup steps for the Phone Link app

Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.

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

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.