Well it's sort of an issue, I found my lost bitlocker encrypted hard drive few days back, I encrypted both the partitions the windows partition and the other one which had my data without tpm. Now when I put the hard drive in an external hdd casing using usb and connect it to pc I don't get to see any partition, I see my hdd in diskpart and all, but with no volumes and nothing all I see is unallocated space, hell I can't even format it, it says and I/O error etc. I have the recovery keys and .bek key for boot partition, since I cannot connect it to a direct sata port as I don't have a pc. Any ideas what might help?
boot with Windows installation disk or a repair one and select "Repair your computer", if you have the recovery key all should be ok.