You can use any phone number that can receive text messages; it doesn’t need to be associated with your account. We won't use or give out the phone number, and the code sent to it will expire after 10 minutes.

Select Start , then select Settings > Personalization > Themes.Choose from a default theme or select Get more themes in Microsoft Store if you want to download new themes with desktop backgrounds that feature cute critters, breathtaking landscapes, and other smile-inducing options.

升级不同于更新，因为它会将电脑从上一版本的 Windows（如 Windows 10）升级到 Windows 11。 本常见问题解答旨在解决有关升级到 Windows 11 的问题。

Closing a Microsoft account means you won’t be able to use it to sign in to any Microsoft products or services, including Outlook.com or Hotmail, OneDrive, Xbox, Skype, Office or Microsoft 365, Rewards and Microsoft Certification.

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

Windows 允许添加多个用户帐户以使用同一设备，使每个用户都有自己的设置、文档和应用程序。 例如，家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件，而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用情况。

Use AutoSum. Use AutoSum by selecting a range of cells that contains at least one numeric value. Then on the Formulas tab, click AutoSum > Count Numbers.. Excel returns the count of the numeric values in the range in a cell adjacent to the range you selected. Generally, this result is displayed in a cell to the right for a horizontal range or in a cell below for a vertical range.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

打开 Xbox Game Bar，各种游戏活动尽在掌控中。 从小组件菜单中选择一项功能，它将作为小组件弹出。 其中很多叠加项可以移动、调整大小或固定到你的屏幕。

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.