I use bitlocker on a 500 gb partiton in my hard drive. Windows 7 is also installed in the same drive. Before it was all fine but since this morning I haven't been able to start windows (it hangs at the welcome screen).

I switched on the computer then I enter the numerical bitlocker password but then it hangs at the welcome screen.

I tried accessing the bitlocker encrypted drive from other operating systems. The drive is shown as locked. When I tried to open it, it prompts for the password. When I enter the password the computer freezes. Please help me out. I have important data in that drive.

  • Is this a laptop drive or desktop drive? Is it external or internal? – David Schwartz Sep 4 '12 at 12:56
  • Are we sure the storage device is in working condition? Have you tried to access it from another Windows 7 machine? – Ramhound Sep 4 '12 at 13:49
  • Did you defrag your disk to make sure none of your Windows files were accidently in the part that was encrypted? My guess is that when Windows actually needs a few bits it can't get to them. - ALSO - Are those other OSes on the same disk, or are they live CDs / other computers? That's an important part. – cutrightjm Sep 4 '12 at 17:19

I have encountered such situations and the drives that behaved like this were damaged. Get HDTune and perform a complete drive scan to make sure you have no bad sectors. Look at the S.M.A.R.T. attributes with the same tool to see if there are unallocated sectors.

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