recently upgraded from Window 10 home (HP OEM ) to Pro on a desktop. tried turning on Bitlocker for the first time on C: and saved the recovery key on a seperate USB and on microsoft account. choose full disk encryption and rebooted the system for the first time. realized, this desktop doesn't have a TPM module and asked for the recovery key from any USB. tried choosing the USB and nothing happened. tried advance options > command prompt and tried to unlock the drive using the recovery key copied on the USB drive doesn't work and unable to get into the system. Please advise how to unlock the drive and login into the OS.