Hi all, I got a laptop of my friend with some problems. Firstly he installed Windows 7, and encrypted one of his partitions with Bitlocker. Then he removed Windows 7 and installed Vista ultimate keeping the partition encrypted. Now I cannot open the partition. And of course his important files are in encrypted drive. Bitlocker is changing the file system unrecognized by any OS. He know the password used on Windows 7. Can anyone help me to recover the data.??? Thanks, Giri.