How to repair Windows 7 using Windows File Checker
- Open the Start menu, type cmd in the search field, right click the found file, and select Run as administrator.
In the Run window type
sfc /scannow, and press Enter
Alternatively, you can copy the command, and paste it in the command window by right clicking in it and selecting Paste.
- During the scan for integrity violations you will see the following progress indicator.
Wait for the process to complete. You will be informed in the same window if any integrity violations have been found and if they have been fixed.
An example of what the message would look like if there are no issues detected.