Learn how to redeem your Microsoft Rewards points for a huge variety of great products and sweepstakes.

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

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

Get help with Skype for Business. Skype for Business 2016 Training. Video: What is Skype for Business? Video: Download and install Skype for Business (video)

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

Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.

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.

Training: Microsoft OneDrive lets you store your personal photos, files, and folders in one place, and get to them anytime, anywhere. Learn more in this online training video.

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。

Learn how to download a recovery image for your Surface device and restore it to factory settings.