Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

The Advanced Boot Options screen lets you start Windows in advanced troubleshooting modes. You can access the menu by turning on your computer and pressing the F8 key before Windows starts.

将列表框添加到 Excel 工作表，用户可以从中选择值。 可通过让用户从组合框选择值，使数据输入更轻松。 组合框将文本框与列表框相结合来创建下拉列表。 可以添加表单控件或 ActiveX 控件组合框。

Windows share window: Select the Outlook icon in the “Share using” section of the Windows share window to email your files using Outlook directly within the windows share window.It also has a search box. So, you can now search for contacts across Outlook to share a file. The Windows share window also displays 8-10 suggested contacts to quickly share to–including emailing yourself a file.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

删除公式时，公式的结果也会被删除。 如果不想删除该值，可以仅删除公式。 删除公式. 选择包含公式的单元格或单元格区域。

隐私：默认情况下，组创建为“专用”。这意味着只有组织中获批的成员可以查看组中的内容。 组织中未获批的任何人均无法查看组中的内容。 若要创建你组织中的任何人均可查看其内容并成为其成员的组，请选择“公用”。

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

This overrides the settings of the style you’re currently using. If you decide later to return to the original settings, go to Design > Paragraph Spacing and choose the option under Style Set.The option might be Default, as shown above, or it will show the name of style you’re currently using.. Change the line spacing in a portion of the document