Find out how to get a DVD player app, add-on, or plug-in, or whether you can upgrade your edition of Windows to add DVD playback.

Lists the file formats that are supported in Excel. The topic also includes a list of unsupported file formats and some suggested workarounds.

Learn how to turn on automatic app updates in Microsoft Store.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

Erfahren Sie, wie Sie Windows Media Player 12 für Windows 10, Windows 8.1 und Windows 7 erhalten.

This step-by-step article describes how to add, modify, or delete registry subkeys and values by using a Registration Entries (.reg) file.

了解 Windows 中的恢复选项。 查明如何重置电脑、回退到以前版本的 Windows 或使用介质重新安装 Windows。

For help with checking your balance from an Xbox console, see Check your Microsoft account balance on an Xbox console. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.

Some Microsoft 365 features are backed by cloud-based services. Learn about connected experiences that analyze your content and download online content.

If you work in an organization that uses Office 365 for business, use the steps below to find out what Microsoft 365 for business product or license you have.