How to Repair System files by scan in Windows 7

Repair System files by scan in Windows 7 :

There are many reasons to corrupted system file. If you get an error something like "file missing or corrupted" message in Windows, you should try to repair system files first.

Now I will show you how to repair Windows 7 system files without using any third-party tools :

1. Type command prompt in Start menu search box and then hit Ctrl+Shift+Enter to launch the Command Prompt with administrator power.

or,

go to Start-> All Programs-> Accessories->  right-click on Command Prompt and then select Run as administrator option.

(Click Yes if you are prompted with User Account Control box.)

2. At the Command Prompt field, type sfc/scannow and hit enter. This command scans integrity of protected system files and then repairs if problems found.

 

The process may take a few minutes.

 

Note : You can also type just sfc in the Command Prompt to know more about sfc commands.

2. Type exit to close cmd option.

Thank You