了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。 如果你在 Microsoft Store 应用中购买了Windows 10或Windows 11 专业版升级，你将在发送确认购买的确认电子邮件中收到数字许可证而不是产品密钥。

Go to Settings > Personalization > Lock screen.Under Background, select Picture or Slideshow to use your own picture(s) as the background for your lock screen.. Change your lockscreen background

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

Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.

Location history. Some Windows apps and services that use location info also use your location history. When the location setting is on, locations looked up by apps or services will be stored on the device for a limited time (24 hours), then deleted.

Note: The scan creates a backup file during the repair process.To change the default name or location of this backup file, in the Enter name of backup file box, enter a new name, or choose Browse to select the file you want to use. You may need to run the tool several times in order to repair your Outlook Data File.

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

Learn how to troubleshoot File Explorer problems in Windows. To open File Explorer in Windows 10, select its icon on the taskbar, press the Windows logo key + E on your keyboard, or select Start > Documents (directly beneath your user icon).. Here are some things to try if File Explorer won't open.

如果未自动显示安装更新说明，则可以手动启动该过程。为此，请按 Xbox 按钮 打开导航页，选择“档案和系统”>“设置”>“设备和连接”>“控制器和耳机”，然后选择要更新的控制器。在 Xbox 无线控制器屏幕上，选择“…”以检查控制器的固件版本。如果它显示“更新”，请选择固件版本，然后 ...

玩免费游戏时遇到问题？ 运行 应用疑难解答。 如果 Microsoft Store 无法打开， 请获取详细信息 来修复它。 在线 播放纸牌 获取 Microsoft 纸牌 需要更多帮助吗？ 请联系支持人员 有关技术支持，请转到联系Microsoft 支持，输入问题并选择“获取帮助”。 如果仍然需要帮助，请选择“联系支持人员”以转 ...