Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

将 Microsoft 帐户链接到设备上的 Windows 11 许可证是至关重要的。 通过将 Microsoft 帐户与数字许可证链接，可以在进行重大硬件更改时使用“激活”疑难解答程序重新激活 Windows。

Available for iOS and Android devices. Outlook is our most full-featured email and calendar app, optimized for PCs and laptops. If you're a heavy email and calendar user, and you want all the advanced features and capabilities of email, such as scheduling and task management, rich formatting, or mailbox rules, Outlook is the best choice for you.

可以查看和清除存储在单个设备上、所有同步设备和云中的 Microsoft Edge 浏览历史记录。 你可以随时选择清除浏览历史记录。 了解如何在 Microsoft Edge 中查看和删除浏览历史记录以及其他历史记录。

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription.

Windows 设备可能会在不同时间获得新功能，因为 Microsoft 通过多种服务技术提供非安全更新、修补程序、改进和增强功能，包括 受控功能推出 (CFR) 。 如果你需要重启设备来完成更新，Windows 会通知你，你可以选择最适合你完成更新的时间。 当设备准备好最新的 Windows 更新后，可以从“设置”中的 ...

Learn how to make labels in Word. You can create and print a full page of address labels or nametags. Get started on how to print labels from Word.

Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.

Use Microsoft Teams (work or school) for a Microsoft work or school account or a guest account in Windows 11. Also, find out which version of Teams you’re using.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.