Is my HDD dead or is there hope of repairing the MBR?

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510
I booted up my home computer yesterday to quite a sight: a black screen with a blinking cursor. More terrifying than the BSOD. Horribly timed too, because I had just recently used my usual backup drive at work and had not yet brought it back home to resume backup. I had formatted it first, so there is no backup data on it.

The computer is a gateway desktop, purchased about 5 years ago. I've upgraded the PSU and video card, and added a Blu-Ray drive, but the motherboard, processor, HDD, and anything else is still original. There have not been any new hardware additions lately, no dual boot OS installed, and not really any new software except virtualbox running a debian guest.

In my search for a solution, I tried booting from the Windows 7 installation disk to attempt some repairs. My attempts were unsuccessful.

I tried using bootrec.exe from the command line to see what I could do. The drive (a 1TB HDD) is shown in BIOS and shown in the CL when I send the "list disk" command, but it is showing 930-something GB of unallocated space in one partition, 250-some MB of unallocated space in another, and two other blank 0 byte partitions. The disk was originally partitioned in two sections: a 700 GB partition, and another with the rest of the available space.

With the bootrec utility i tried running /FixMbr - which said it was succesful, but made no difference. I also ran /FixBoot, /ScanOs, and /RebuildBcd, and none of them had any effect. /ScanOs was not able to find any windows installation on the disk.

The windows installer on the disk also would not let me format, partition, or install on the disk.

So is the HDD just trashed? Failure of physical parts maybe, which is why it still appears in BIOS and system repair? I can deal with the lost data (although it sucks) but is there any chance I could install a new drive, install windows to it, and recover some of the data from the drive?
 
Solution
I would use a disc editor (eg DMDE freeware)to examine the critical sectors on your drive in readonly mode.

http://dmde.com/

Let me know if you need me to help you with this.

Alternatively, try Partition Find and Mount:

http://findandmount.com/

Jaime3d

Honorable
Dec 3, 2013
93
0
10,660
There are utilities that will recover some of the data when the MBR becomes corrupt. I've had it happen to me once and it sucks. You won't recover everything, in particular files that are fragmented, but you could still recover some files.

Have you tried running fdisk to re-format?
 

Dr-Kiev

Distinguished
Aug 24, 2010
54
0
18,660
If you have only MBR corruption, which i doubt , you can extract 100% of the files (original MFT is most need staff for such operation) , but, it seems, the problem more complicated . First, what you need to do is to test your drive for bad blocks and FW issues, after that clone it and scan in R-studio .
 

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510
I have not yet. I did not want to actually format the drive yet, I was just checking to see if the installer would let me. I would rather try to buy another 1TB drive and see what I can recover before I try to format it. If there's no way to repair it without formatting, I would like to do that. Otherwise I will try to recover data before attempting a format. If i'm lucky ill just end up with 2 working drives, whether or not I manage to recover anything.
 

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510


I've heard I can boot from a Linux live cd to run disk diagnostics. Is there any other way or should I try this?
 

Dr-Kiev

Distinguished
Aug 24, 2010
54
0
18,660

Connect your drive to any other desktop pc or to any laptop via USB port.

 
I would use a disc editor (eg DMDE freeware)to examine the critical sectors on your drive in readonly mode.

http://dmde.com/

Let me know if you need me to help you with this.

Alternatively, try Partition Find and Mount:

http://findandmount.com/
 
Solution

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510


I wouldn't be able to use either of those until I bought a new hard drive and was able to boot into windows. I burned a linux disk recovery suite (Parted Magic) and I've had it running recovery for about 16 hours now. So far, it says its recovered 80% of the data off the disk with no errors. With any luck it will finish up, I can format the disk from the CLI and then bring back the data I need.
 

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510
So I copied everything to my external hdd, but now I just have a 931 GB partition on that disk that windows just recognizes as "free space" in its disk manager. It won't let me assign a drive letter to it, or do anything with it. It seems like it was just a bit for bit clone of the HDD.

I'm suspecting that the file system was somehow corrupted, because after a complete format I was able to reinstall windows.

If the FS was currupted, I'm guessing there is very little I can do to recover data from the copied image. I'll try running a file recovery or something and see what I can come up with. I'll also look into DMDE and Partition Find and Mount.

Any other suggestions?
 

Brian Carrigg

Honorable
Jan 13, 2014
17
0
10,510
DMDE is running now, and it is working! only cost me $25 total for Parted Magic and DMDE. Definitely cheaper than a new hard drive. I almost just bought one without trying to recover anything.