Last Friday, a friend of mine asked me to fix his Dell OptiPlex GX 620 having BSOD Unmountable_Boot_Volume.
Ok, here is what I’ve done:
1. Booted the computer to see the problem and confirm it myself. My friend did not know exactly what the error is.
2. Tried booting in Safe Mode knowing that there is really a problem.
3. Then I hit the BSOD Unmountable_Boot_Volume error.
4. Forced reboot the computer by holding the power button.
5. Booted using Windows XP installation disk that comes with the computer (dell)
6. Went to Recovery Console
7. Issued command: chkdsk /r (check disk with repair option), that particular error is caused by dirty or faulty hard drive sectors.
8. Waited for more than an hour to finish the process.
9. While still in Recover Console, I issued: fixboot to fix the boot sectors.
10. Exit Recovery Console and rebooted the computer.
11. Updated the sound card (Realtek Audio Driver) and video card (ATI)
11. Rejoiced! Error is fixed.
Reference on the internet for Windows XP computers are everywhere and this is one thing I like about Windows XP. J