Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.

了解如何管理 Microsoft 设备。 在 Microsoft 帐户上添加、删除、注册或重命名设备。 断开设备与 Microsoft Store 的链接 如果无法从 Microsoft Store 中下载内容，则你可能已达到了设备限制。

On another Windows PC or other device, connect to Wi-Fi as you normally would, and enter your Wi-Fi password when prompted. For more info about connecting to Wi-Fi, see Connect to a Wi-Fi network in Windows.

You can upgrade from Windows 10 to Windows 11 if your device meets hardware specifications, and if the Windows 11 release has been made available to your device.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Troubleshoot issues that occur when setting up external monitors. If you are trying to set up an external monitor and it’s not working, press the Windows logo key + P to make sure that the Extend option is selected. If the Extend option is selected, try the following troubleshooting tips.

Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

ลองวิธีแก้ไขปัญหาเหล่านี้ถ้าคุณไม่สามารถลงชื่อเข้าใช้บัญชีอีเมล Outlook.com, Hotmail, Live หรือ MSN ของคุณ หรือคุณไม่แน่ใจว่าจะลงชื่อเข้าใช้หรือลงชื่อออก ...

If you're moving from a Windows 7 or Windows 8.1 PC to a new Windows device, you'll find that the best way to get apps and games is through Microsoft Store.

Probeer deze oplossingen als u zich niet kunt aanmelden bij uw Outlook.com-, Hotmail-, Live- of MSN-e-mailaccount of als u niet goed weet hoe u zich moet aan- of afmelden.