Learn how to find which version of Windows operating system your PC is running and device specifications.

Learn how to access, share, or clear your Microsoft search history through the privacy dashboard.

Consolidating data is a useful way to combine data from different sources into one report.

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。

下载和安装. 通常 Skype for Business 是随 Microsoft 365 一起安装的。 如果已安装 Microsoft 365，但未安装 Skype for Business 且需要安装它，请参阅：

了解如何运行 Windows 更新疑难解答来解决下载或安装 Windows 更新时出现的错误。

Microsoft Edge uses your past preferences and usage to make recommendations for which basic information would be best suited for creating an online account.

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

使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

More information Consider the severity of the issue. Before reverting to an earlier version of an Office installation, weigh the severity of the issue that you're experiencing against the benefits of having the security, performance, and reliability improvements that are included in the latest update.