你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。 在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

If you accidentally delete a file or folder in OneDrive, you may be able to recover it later from the OneDrive recycle bin.. For info about restoring a SharePoint file or folder, see how to restore items from the SharePoint recycle bin.For info about restoring SharePoint files stored in OneDrive, see Restore a previous version of a file in OneDrive.

Notes: The formatting options that appear in the Formatting tab depend on the data you have selected. If your selection contains only text, then the available options are Text, Duplicate, Unique, Equal To, and Clear.When the selection contains only numbers, or both text and numbers, then the options are Data Bars, Colors, Icon Sets, Greater, Top 10%, and Clear.

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

Windows 11 lets you quickly check your network connection status. Select the Start button, then type settings.Select Settings > Network & internet.The status of your network connection will appear at the top.

Get started with basic tasks in Excel such as opening a workbook, entering and formatting data, calculating data, and trying some quick analysis features..

The FILTER function allows you to filter a range of data based on criteria you define.

Use Version History to view previous versions of files stored in OneDrive or SharePoint libraries.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need help?, select Yes.