About 6 weeks ago, I received a laptop that was "Blue Screening" with an Unmountable_Boot_Volume error message. According to my research this could be a physical drive issue or a corrupt OS issue. I ran the WD Diagnostic utility on UBCD. It found and repaired errors. I restarted the laptop, XP found and repaired errors and the laptop seemed to work fine for about 6 weeks.
I received it again today with the same error. The built-in Dell diagnostics produced an error when executing the DST (Drive Self Test). I booted with the WD Data Lifeguard Diag CD and it was unable to see the drive and produced error code 0120. I looked this error up and it is listed as "unknown error." I'm told to repeat the test and replace the drive if it continues. The error continues and I am having the drive replaced under warranty.
Just for the heck of it, I ran through the same steps as before (in first paragraph). Once again the WD Utility on UBCD found and repaired errors and after rebooting, XP did the same and now the laptop works fine. However, when I rerun the WD Diags (Data Lifeguard) it still doesnt see the drive and produces the 0120 error.
Here is what the WD site says in regards to the Unmountable Boot Volume:
I guess I'm just trying to determine what was the real cause. Since the OS repair fixed the drive(twice) and everything worked fine, that seems to say it was an OS issue. But the exact same issue twice in 6 weeks? On the other hand, the diagnostics still point to the drive. Could a physical drive problem cause this OS issue?
Here is what MS says regarding the error....and according to the stop code I received, they point the finger at the drive: http://support.microsoft.com/kb/297185
Just trying to find the real trouble maker here. Any input would really be appreciated!