Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually. Restoring won’t affect your personal files, but it will remove apps, drivers, and updates installed after the restore point was made. To go back to a restore point:

A Free badge means an active Microsoft 365 Family or Personal subscription isn't associated with the account you signed in with. Only the free web versions of Word, Excel, and PowerPoint are available to you.

Outlook 网页版是组织使用的基于 Web 的 Outlook 版本。你需要使用工作或学校帐户登录才能访问此基于 Web 的 Outlook 版本。 你的工作或学校帐户通常由组织中的某人分配给你。

Learn how to view, manage, and delete cookies in Microsoft Edge.

Learn how to use keyboard shortcuts in Word to add accent marks, special characters, symbols, and more.

Learn how to improve Windows PC performance if your device is running slowly.

Learn about different things you can try to fix Ethernet network connection problems in Windows

See how to install Visio 2013 and 2016 and Visio Pro for Microsoft 365.

If you need instructions for adding an email account using advanced settings, go to Use advanced setup to add a POP or IMAP email account in Outlook for PC. Outlook won't accept my password. If Outlook won’t accept your password and you know you’re using the right password for your Gmail account, you might have an older version of Outlook that doesn't currently support this faster Gmail ...

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.