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

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

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。

Learn how to back up apps, settings, files, photos, and Microsoft Edge favorites and preferences on your Windows PC.

If your Surface touchscreen doesn’t work, try these steps first. To try to resolve these issues, you can begin by following the steps below to boot to UEFI and test touch functionality, reinstall the touchscreen driver, check for Windows and Surface updates, or reset Surface.. If that doesn't resolve the issues, you can find more info in Is your touchscreen still not working?.

Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

The Tasks app in Microsoft Teams brings together your individual tasks from To Do and Outlook with your team tasks from Planner so you can more efficiently cross them off your lists.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

There are many ways to shut down your PC—you can turn the PC off completely, you can make it sleep, or you can hibernate the PC.