i used bitlocker to lock my hard disk partitions. i was using windows 7 at that time. recently i faced a malfunction in one of the RAM ports so i had to restore my original windows vista. in doing so the drives have become inaccessible. Can someone please guide me as how to unlock the drives??

If you have a recovery key, place your hard drive onto another computer with Windows 7 Ultimate Edition installed and do this. type BitLocker in Start Menu Search and Open the BitLocker Drive Encryption Program Once it opens, just find the drive and click "Turn Off BitLocker It will ask for a confirmation: Your drive will be decrypted. This may take considerable time. You can monitor the status of your drive decryption. Just proceed by clicking Decrypt Drive Wait wait wait "Everything we do is dictated by motive."