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Windows 7: Tough Problem

05 Dec 2009   #1

Windows 7 x64, build 7068
Tough Problem

The Problem:
All of my files on my external hard drive have been encrypted using Bitlocker from the Windows Ultimate Beta. Tonight I installed my Pro version that I recently purchased, and I lost my recovery key to unlock the external drive. Now roughly 600GB of stuff is encrypted and I cannot access it.

What I have tried:
I posted this in a different forum and a user pointed me to this How to restore a Windows 7-based computer to a previous Windows installation by using the Windows.old folder. The user noted that if I did this I should be able to restore the old version I had, and be able to access Bitlocker. I have read Bitlocker will remember your old recovery key in case you for get it. I gave it a shot with no success.I am under the suspicion it is meant solely to revert back to a previous Windows (IE W7 to XP, or W7 to Vista), not going from Windows 7 Pro 64 to Windows 7 Ultimate 64. If that is the case, does anyone know what the correct commands would be to do a Pro to Ultimate restoration (I'm terrible with DOS)?

Also, I do have a system restore...on the encrypted external drive.

Any help is greatly appreciated with this!

Thank you

My System SpecsSystem Spec
05 Dec 2009   #2
Microsoft MVP


If you purchased it retail you paid for MS tech support. They would have the answer ready. If not, they will elevate it to a research team that interacts with the team that develops Bitlocker. Suggest you try it and good luck!
My System SpecsSystem Spec

 Tough Problem

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