If a language is listed under Preferred languages but doesn't appear on the Windows display language list, you'll first need to install its language pack (if it's available).. Select Start > Settings > Time & language > Language & region.

If installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation.

If you can’t locate a lost file from your backup, then you can use Windows File Recovery, which is a command line app available from the Microsoft Store.Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin.

Office 小型企业版、Office 家庭和学生版以及 Office 专业版可在单台计算机上安装。 如果尝试在另一台（自己所有的或其他人所有的）计算机，或者硬件更改后的同一台计算机上安装和激活这些版本的 Office，则可能会看到一条错误消息，提示你已达到最大激活数量。

Training: Get up to speed in minutes, quickly refer to things you’ve learned, and master keyboard shortcuts with these handy cheat sheets for Microsoft Office.

Notes: To find an item in the Choose commands from list, it may be helpful to first confirm its location and name within the app. Commands that are no longer visible in the app could still be listed here under All commands.To help identify this type of command, a more descriptive tooltip name may appear in parentheses next to the legacy command name in this form:

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Use the Windows Settings app to change your default browser.

After you create a chart, you might want to change the way that table rows and columns are plotted in the chart. For example, your first version of a chart might plot the rows of data from the table on the chart's vertical (value) axis, and the columns of data on the horizontal (category) axis.

Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn't reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes.