The SWITCH function evaluates one value (called the expression) against a list of values, and returns the result corresponding to the first matching value. If there is no match, an optional default value may be returned.

获取对 Microsoft 应用和服务的支持。

Work and school accounts have more advanced security and compliance tools to protect sensitive organization data. Work or school accounts are often associated with Microsoft 365 for business or Microsoft 365 Education products and are managed by an administrator responsible for assigning user accounts and Microsoft 365 licenses to people in their organization.

Information. Windows can download high-resolution icons for many hardware devices that you connect to your computer, along with detailed information about them, such as product name, manufacturer, and model number—even detailed information about the sync capabilities of a device.

Add Members to Group to add members to the Microsoft 365 group associated with your site (preferred method). After making this selection, the Group membership for the site will display. Select Add members, enter a name or email address, and select Save. Members added to the Microsoft 365 group are added to the SharePoint Site members permission group by default and can edit the site.

双击“Microsoft Surface 高级配置和电源接口兼容的控制方法电池”或“Surface 电池”，选择“驱动程序”选项卡，然后依次选择“卸载设备”>“确定”。 你也可以右键单击“Microsoft Surface 高级配置和电源接口兼容的电池”或“Surface 电池”，然后选择“卸载设备”。

Important: Steps may be different between new and classic Outlook for Windows. To determine which version of Outlook you're using, look for File on the ribbon.If there's no File option, follow the steps under the New Outlook tab. If the File option appears, select the tab for Classic Outlook.

To change startup behavior, select Start, home, and new tabs, and then select what you want Microsoft Edge to display on startup.

Note: If either your Outlook.com mailbox or your OneDrive storage is full, you cannot send or receive email.Check your Outbox or your mailbox storage to see what's taking up space. Learn more.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.