When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.

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Learn how to run System File Checker in Windows to check if your computer has problems with files.

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. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

Download the drivers for the desired device from the device manufacturer's site. Make sure to download the correct drivers that match the version and architecture of Windows. Once downloaded, if necessary, uncompress the downloaded drivers. Make a note of where the drivers are located on the Windows device.

The installation file is typically named Autorun.exe or Setup.exe, but this may vary. If you're not sure, check the Readme file in the folder for instructions about how to run the installation process.

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Follow the steps in the section, How to start the Windows Installer service when system services are not loaded. Then try installing or uninstalling the app or update again. If the installation or uninstallation is successful, your issue is resolved.

This article describes how to start the Disk Cleanup tool and specify the hard disk to be cleaned by using the command line. To start the Disk Cleanup tool and specify the hard disk to be cleaned by using the command line, follow these steps: Click Start, and then click Run.

Learn how to use Manage and Optimize Drives to keep your disk and data drives defragmented and at top performance in Windows.