由于此网站的设置，我们无法提供该页面的具体描述。

Windows Hello is a fast, secure, way to sign in to your Microsoft Windows device, and facial recognition makes it even easier. An important part of making it secure is that facial recognition needs to be confident that the face it's seeing in the camera is a live person and not a photograph or other image.

Change the size of your desktop icons. To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.

由于此网站的设置，我们无法提供该页面的具体描述。

Open Rewards dashboard. To earn points by searching with Bing on your mobile device, set Bing as your default search engine, use the Bing app, or use the Microsoft Launcher for Android app.

由于此网站的设置，我们无法提供该页面的具体描述。

A theme is a combination of desktop background pictures, window colors, and sounds. Get a theme. To get a theme, expand one of the categories below, select a link for the theme, and then select Open.This saves the theme to your PC and puts it on your desktop.

Unlinking and re-linking your computer to OneDrive can help solve some sync problems. You can also use these same steps to move your OneDrive to a new location, such as an external disk drive.

由于此网站的设置，我们无法提供该页面的具体描述。

This page includes accessibility help articles for people who use Windows voice access to control their PC and author text using their voice.