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

了解如何在电脑上安装 Office 2013 或 Office for Mac 2011。

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Outdated software can cause problems with a Windows upgrade, so removing old or nonessential applications can help. If you plan to reinstall the application later, make sure you have the installation media and all required activation information before removing it.

Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Get the latest update for Windows 10. Windows 10 automatically downloads and installs updates to make sure your device is secure and up to date.

Find the Recycle Bin. If your desktop shows no icons at all, right-click (or press and hold) the desktop and select View.If Show desktop icons has no checkmark, click it to add one. If that doesn't work, try this:

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.