PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.

注意 你可以从运行与你的计算机相同的 Windows 版本的另一台计算机获取系统文件的已知良好副本。 你可能希望在该计算机上执行系统文件检查器进程，以确保要复制的系统文件是一个良好的副本。 步骤 1：获取损坏的系统文件的管理所有权。

Windows Mac Step 1: Stop Skype for Business from starting automatically In Skype for Business, choose the tools icon and Tools > Options. Choose Personal, then uncheck Automatically start the app when I log on to Windows and Start the app in the foreground. Then choose OK. Choose File > Exit. Skype for Business is still on your computer, but you'll no longer see it. Step 2: Remove Skype for ...

Uninstall from Control Panel In search on the taskbar, enter Control Panel and select it from the results. Select Programs > Programs and Features. Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall / Change. Then follow the directions on the screen. Need more help? If you can't find an app or program, try the tips in See all your apps in ...

Find out how to submit a case review and learn more about your XBOX enforcements.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

An existing Windows 10 device can be upgraded to Windows 11 if it meets the following criteria: The device is running a currently supported version of Windows 10. If the device isn't currently running a supported version of Windows 10, upgrade to a supported version of Windows 10. The device meets the minimum hardware specifications to run Windows 11. Specific timing for Windows 11 upgrade ...

Learn how to make your Windows display easier to see using accessibility features for ease of access.

Learn how to customize the default desktop icons in Windows, adjust their size to suit your preferences, and show or hide all icons as needed.

You can change your user account picture by either choosing an existing picture or taking a new photo. Here's how. Change your user account picture In the Settings app on your Windows device, select Accounts > Your info or use the following shortcut: