Windows 8.1 and Windows Server 2012 R2; End of Support; July 9, 2024—KB5040456 (Monthly Rollup) June 11, 2024—KB5039294 (Monthly Rollup) May 14, 2024—KB5037823 (Monthly Rollup)

Admins set default meeting settings. They try to optimize for most use cases, but if you want to adjust your options for a specific Teams meeting, go to Meeting options.

Occasionally, dates may become formatted and stored in cells as text. For example, you may have entered a date in a cell that was formatted as text, or the data might have been imported or pasted from an external data source as text.

OneDrive 上的文件在共享之前是私有的。 请记住，使用编辑权限共享文件夹时，你与之共享的人员可以 将共享文件夹添加到自己的 OneDrive。 这使他们可以将该文件夹与他们自己的文件夹和项目保留在一起、轻松地在文件夹之间移动项目以及更轻松地脱机处理项目。

可以通过多种方法关闭电脑：完全关闭电脑、使电脑进入睡眠状态或使电脑进入休眠状态。

Add section break to customize your document's headers and footers, format, layout, and page numbering.

Find out how to identify and manage different file types in Windows with File Explorer and common extensions.

When you check Outlook Desktop for the Teams Meeting Add-in by going to File > Options > Add-ins, then select Go next to COM Add-ins, the Teams Meeting Add-in is missing.

This article describes how to download and reinstall Microsoft OneNote 2016 for Windows if the app was inadvertently uninstalled from your PC.

Learn how to turn off two-step verification. Two-step verification is an optional security feature that, by using two forms of identity—your password, and a contact method (also known as security info)—makes it harder for someone to break into your Microsoft account.