Data recovery from a former bitlocker drive on which a new Win7 installation was made

[Bitlockerhater]

Hello all,

I happen to have reinstalled by mistake a new Windows7 OS on a drive (I had two drives one with an OS and another

with a bitlocker drive used for back up, both drives were IDE drives and the bitlocker was under slave mode if that

can be of any help... ) that hosted VERY important data and was encrypted by Bitlocker.What can I please do to

recover this formerly encrypted data? The drive is now recognized as an active healthy partition with an associated

drive letter (different from the original one)

I don't have the bitlocker key.

If you need any hardware info please let me know.

Help me please!

Best,

Mike