Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

Find answers to common questions about genuine Windows software.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Windows Hello. Windows Hello 可使你通过你的面部、虹膜、指纹或 PIN 登录到你的设备、应用、在线服务和网络。 即使你的 Windows 设备可以使用 Windows Hello 生物识别，也不必这么做。

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.

We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.

Discover how to use Microsoft Phone Link to connect your Android or iPhone to your PC for seamless access to notifications, calls, and apps.

Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements.