Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

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

Learn how to turn on device encryption, or standard BitLocker encryption 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。

Learn about what effect closing a Microsoft account might have on your other apps and services.

Learn how to set up a connection to a proxy server on your Windows PC.

Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

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

The new Microsoft Edge helps you browse, search, shop online, and more. Like all modern browsers, Microsoft Edge lets you collect and store specific data on your device, like cookies, and lets you send information to us, like browsing history, to make the experience as rich, fast, and personal as possible.

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