你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。 在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

Uninstall from the Start menu. Select Start > All apps and search for the app in the list shown.

In the search box on the taskbar, type device manager, then select Device Manager from the menu.

In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).

Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update , then select Check for updates.If you need help setting up your external monitors, see How to use multiple monitors in Windows 10.

Types of info. What will be deleted. Where it's stored. Browsing history. The URLs of sites you've visited, and the dates and times of each visit. On your device (or, if sync is turned on, across your synced devices)

Turn your PC off completely. To shut down, select Start and then select Power > Shut down.. Sleep. Sleep uses very little power, your PC starts up faster, and you’re instantly back to where you left off.

Note: Some cameras won't appear in the Camera settings page.These include infrared (IR) cameras used for Windows Hello Face authentication, cameras using DirectShow technology (like many apps provided by DSLR or action camera manufacturers so their devices can be used as webcams), and proprietary cameras that aren't managed by Windows—such as industrial cameras and many networked cameras.

Learn Excel skills from beginner to advanced with video tutorials, templates, and tips from Microsoft Support.

Note: Some versions of Project don't have an associated Microsoft account, or work or school account, or you need to redeem your product key in a different way.See the following if this is how you got your version of Project Professional 2021, Project Professional 2019, Project Standard 2021, or Project Standard 2019: Microsoft Workplace Discount Program (formerly known as Home Use Program ...