Using System File Checker in Windows
support.microsoft.com › en-us › windowsUsing System File Checker in Windows. 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. In the search box on the taskbar, type Command Prompt , and right-click or press and hold Command Prompt (Desktop app) from the list of results.