重要: Microsoft不再支持超过一年的 Authenticator 版本。始终使设备保持最新状态。

Try these steps if you’re having trouble buying apps, games, or downloads from the Microsoft Store.

Prøv disse løsninger, hvis du ikke kan logge på din Outlook.com-, Hotmail-, Live- eller MSN-mailkonto, eller hvis du ikke er sikker på, hvordan du logger på eller af.

Find Microsoft Forms help and tutorial content. Explore Microsoft Forms training courses, create a survey, share your form, and more.

The Feedback Hub app lets you tell Microsoft about any problems you run into while using Windows 11 or Windows 10. You can also send suggestions to help us improve your Windows experience.

See a diagram of Surface Book 2 and learn more about its features, memory, and storage.

使用 [新增語言] 功能來安裝 Windows 11 的另一種語言，以檢視該語言的功能表、對話方塊以及支援的應用程式和網站。

Formation : Prise en main de SharePoint dans Microsoft 365. À office.com, connectez-vous à SharePoint, puis sélectionnez la vignette SharePoint.

Microsoft is retiring the Windows legacy inbox Troubleshooters, such as Keyboard troubleshooter and Speech troubleshooter, and the Microsoft Support Diagnostic Tool (MSDT) that runs them.

Learn how to troubleshoot when the camera is not working in Windows or you see errors 0xA00F4244 or 0x200F4244.