Stay connected to the Xbox community! See what friends are up to, start a text or voice chat, and find players for multiplayer games.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

In PowerPoint, learn how to troubleshoot Designer if you don't see the Designer button, no suggestions are offered, or the button is grayed out.

Learn how to add and remove group members and to promote and demote group owners in Microsoft 365.

Find solutions for common issues with Game Bar on Windows, including keyboard shortcut problems.

了解如何使用设备管理器更新Windows中的驱动程序或重新安装驱动程序。

Correct the #N/A errorin the VLOOKUP function. INDEX and MATCH offers more flexibility with matches. INDEX and MATCH can find an exact match, or a value that is greater or lesser than the lookup value.

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

If you're having trouble detaching or attaching your Surface Book keyboard, here are some steps to try to get things working again.

You can see multiple calendars at the same time side-by-side or combined into a stacked overlay view to help you see availability across calendars.