Use System Restore. 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.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

Learn how to access the Control Panel in Windows for managing your system settings and programs.

To download the offline installer for Internet Explorer 11, choose your language and system below.

可通过以下方式邀请他人加入 Microsoft Teams 会议：使用会议邀请功能，或从会议内直接邀请。

How to recall and/or replace an email message you sent by using Microsoft 365 and your built-in Exchange Server account.

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