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.

若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

Windows devices may get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR).. Windows will let you know if you need to restart your device to complete an update, and you can choose a time that works best for you to complete that update.

After you restart your computer, the uninstall tool automatically re-opens to complete the final step of the uninstall process. Follow the remaining prompts.

Tasks stores tasks that you create or that are sent to you, and also messages that you’ve flagged. When you view your tasks, the default view is Flagged Items and Tasks.You can change that by selecting Tasks in the folder list to the left. For more information about tasks in Outlook Web App, go to Tasks Overview.. Create a new task by selecting New task.

All Xbox digital codes are 25 characters long, include both numbers and letters, and are formatted in five blocks of five characters (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

Get in touch with Microsoft Support for assistance with Microsoft products and services.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.