Tips: If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter. If you're looking to open a new account, you can create one here.

打印恢复代码并将其保存在安全的地方。 出于安全考虑，请勿将代码存储在用于登录帐户的设备上。 如何实现下载我的Microsoft帐户恢复代码？

Learn how to manage your Microsoft subscription, including billing, renewal, and cancellation options.

Go to the Download Windows 11 site.. Under Create Windows 11 Installation Media, select Download Now.The MediaCreationTool.exe tool is downloaded.. Run MediaCreationTool.exe.The media creation tool walks through creating installation media.

Note: The Wireless Display app is available on devices running Windows 11, version 22H2 and later.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

了解如何使用 Game Bar 捕获游戏过程、与好友聊天、跟踪成就等。

若要在 Outlook.com 中获取支持，请单击此处或选择菜单栏上的帮助，然后输入查询。 如果自助服务无法解决问题，请向下滚动到“仍需要帮助？”，然后选择“是”。 若要在 Outlook.com 中联系我们，需要登录。

系统要求. 手机连接 体验从 Windows 电脑和 手机连接 开始。 从电脑中，你可以使用预安装在设备上的连接至 Windows 应用或可从 Google Play 或 Samsung Galaxy Store 下载的连接至 Windows 连接到选择 Android、Samsung、HONOR、OPPO、ASUS 和vivo体设备。

Tips: If you want a deeper scan, instead of selecting Quick scan in step 3, select Scan options and choose the type of scan you want.. For the most complete scan, run Microsoft Defender Offline. For more about that see Help protect my PC with Microsoft Defender Offline.

如果你没有活动的 Internet 连接或者遇到了速度缓慢或连接不可靠的问题，使用 Office 脱机安装程序安装 Office 2016 或 Office 2013。