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.

System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps: Make sure you've installed the latest updates for Windows, and then restart your machine. To find out more, read Update Windows.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

There are many reasons why you might receive an error message when upgrading or installing Windows 11, but common errors can be fixed with a few steps that you can do on your own. Note: An upgrade takes your device from an older version of Windows, such as Windows 7, Windows 8.1, or Windows 10 to Windows 11.

Solution 1: Make sure your audio device is turned on. This seems obvious but it can happen to the best of us. If your audio device is wireless, make sure it’s charged. A device with a low battery can turn off without warning. Solution 2: Check your party audio settings in Game Bar. Are you in a party?

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open.

Windows 10 Windows 8.1 Windows 7. You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections. 5. Check sound settings. 6. Fix your audio drivers. 7. Set your audio device as the default device. 8. Turn off audio enhancements. 9. Restart Audio Services

You can only install this DirectX version through Windows Update in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2. Note To upgrade DirectX further, you will need to upgrade your operating system.

The Bluetooth icon is missing, or Bluetooth can't be turned on or off. Bluetooth doesn't work after a Windows update is installed. Bluetooth doesn't work after you upgrade to Windows 11 from Windows 10. Bluetooth doesn't appear in Device Manager, and there are no unknown devices listed.