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

了解如何使用 PIN、面部识别或指纹通过 Windows Hello 登录电脑。

Find the information you need to import to or exporting from Outlook, whether you're using Office 365, Outlook 2016, or a Mac.

Use Microsoft Edge settings to save user name and password information and save time when signing in to websites.

可通过不同的方式删除应用和程序，因此如果找不到要查找的应用和程序，可以尝试另一个位置。 请注意，某些应用和程序内置于 Windows 中，无法卸载。

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

选择 任务栏 右侧"网络"图标，然后移动"亮度 "滑块以 调整亮度。（如果未显示滑块，请参阅下方的“备注”部分。） 某些电脑可能允许 Windows 根据当前照明条件自动调整屏幕亮度。

Use OneDrive as a cloud backup to share your files and folders with others. Learn how to control permissions, allow editing, or set expiration dates.