Open Command prompt with Administrator privilage then type:
sfc /scannow and let the scan run --> once it is done type
chkdsk /r /f --> hit enter and then type
y.
Close the Command prompt and then download
TFC from here:
http://oldtimer.geekstogo.com/TFC.exeOnce TFC finishes follow its prompts to do a Restart.
Let the Check Disk Run.