Why do tyou think it's corrupt? It lives in the C:\Windows folder but can only be seen if you go to the Tools menu then Folder Options and then View and tick to "Show Hidden Files and Folders" and then untick "Hide Protected System Files". Accept the warning then click Apply and Ok your way out. $mft will be the first file in the list. If you have one in the root of C:\ as well, delete that too because it shouldn't be there.
what can i do in my laptopt on this corrupt file