Hi,
Lets try something first :
1. Open an elevated (adminstrator permsssion) CMD window
2. At the prompt, type sfc /scannow and hit enter.
3. Report the results that are shown.
Check your hard drive/s:
1. Open an elevated (adminstrator permsssion) CMD window
2. Type chkdsk /R and hit enter
3. You will be prompted whether you wish to schedule a check disk at next bootip - type Y and hit enter.
4. Reboot your PC.
5. During bootup, a chkdsk will be run - make a note of any problems it finds and post back here.
Regards,
Golden