Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

如何更改出生日期因当前列出的 年龄和需要父母或监护人同意的当地法律而异。 展开下面的部分，了解详细信息，具体取决于你的年龄或错误消息。 我是成年人 如何更改成人 Microsoft 帐户上的出生日期 ...

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

Learn how to use the Gaming Services Repair Tool to troubleshoot installation and update issues with Gaming Services on PC.

Use Microsoft Teams (work or school) for a Microsoft work or school account or a guest account in Windows 11. Also, find out which version of Teams you’re using.

本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。 DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

使用 VLOOKUP、HLOOKUP 和其他函数（如 INDEX 和 MATCH）根据您输入的值搜索和查找数据。 本文将让您快速回顾 VLOOKUP，然后链接到更多内容。

If you’re having sound or audio problems, the following suggestions might help. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.

Learn how to download a recovery image for your Surface device and restore it to factory settings.