Learn how to access the Control Panel in Windows for managing your system settings and programs.

若要在 Outlook.com 中获取支持，请单击此处或选择菜单栏上的帮助，然后输入查询。 如果自助服务无法解决问题，请向下滚动到“仍需要帮助？”，然后选择“是”。 若要在 Outlook.com 中联系我们，需要登录。

Learn how to manage background activity for apps to help save battery power in Windows.

@提及某人向他们发送通知，并在 Microsoft Teams 中引起他们的注意。

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。

Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

Update Surface devices and Windows. Download the latest drivers and firmware updates to keep your Surface devices performing their best.

通过 Xbox 在线安全和隐私设置，你可以决定谁可以查看你的 Xbox 档案详细信息，以及人们与你和你的内容互动的方式。

In Excel, show items or values in logical groups like months or quarters for ease of summarizing and performing data analysis.

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.