Access Denied! HD failure or virus?

sjuliani

Honorable
Aug 4, 2013
7
0
10,510
I started my computer yesterday and i noticed that i couldnt get into the windows 7 log in page. All the monitor showed was a black screen with mouse that was functional thats it. Tried all the different options for safe mode and none worked.
I did a system restore to a point a day ago and it had the exact same issue.
I went into system repair and command prompt. I was able to run Chkdsk /f and /r. chkdsk /f found a whole lot of files with "invalid security id" which it replaced with the default. chkdsk /r found a few bad blocks which it repaired. I rebooted but the issue persisted. Ran this a few times and each time it found several bad sector blocks in different areas. Should i continue running chkdsk?
Removed the harddrive and mounted it to another pc. the harddrive was recognized but everytime i clicked on it it stated that "access is denied". I checked the security option and gave myself full control but the issue continued.
Ran Avast which found no viruses. Ran Malwarebytes it found 10 "PUP" files which it quarantined.
Mounted the Harddrive to an external case and tried to access it via usb but still the same issue. Seatools doesnt even recognize it.

Any ideas on what else i can do ? all my files are there when i check them with command prompt.
Harddrive is a 1TB seagate
 

i see. im going to make dd image of it, then install a clean copy of windows and see if it clears the issue. ive ran chkdsk at least 5 times and each time it keeps finding more "bad clusters" and it still doesnt do anything

 
I have less then 100gb of data on the drive, do you know if partimage avoids copying free space? I know testdisk copies the entire disk.
 
ok partimage was throwing read errors. so i went the long route made a dd image which took around 10 hours, testdisk stated that it was done successfully but there were read errors. I formatted the harddrive and then ran chkdsk and now it doesnt show any issues. i even moved a few files into the harddrive without any issues.
Is it possible that a virus causes bad sectors and read errors?