The new experience for recording your presentation in PowerPoint for Windows. Currently available for Office Insiders only.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Learn how to report a concern or contact Bing for any issues or feedback related to Bing Maps, Bing Search, Bing Ads, and more.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Some extensions change browser settings like your default search engine, new tab page, and other types of site data. To prevent extensions from changing the preferences you set up when you installed Microsoft Edge , the browser automatically turns off extensions that might change your preferred settings.. You can change settings for your extensions at any time.

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

If you see “UPnP Not Successful” in your Xbox console’s network settings, your router may need an update.

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

本文介绍如何在 Windows 8.1、Windows 8、Windows 7 或 Windows Vista 中使用系统文件检查器工具来解决丢失或损坏的系统文件的问题。