To locate and retrieve the BitLocker Recovery Password for a computer in Active Directory, follow these steps:
Start > Run > adsiedit.msc
Expand the tree and select the computer name:
DC=,DC=
OU=
CN=
Double-click (or right-click > Properties) the entry in the right pane (i.e. CN=T-)
Scroll down and locate “msFVE-RecoveryPassword”
Double-click (or left-click > Edit) the attribute to see the Recovery Password
Use the Recovery Password to unlock the computer
If the Recovery Password is required due to the replacement of the motherboard or other core hardware, you will need to decrypt and re-encrypt the hard drive in order to avoid needing the Recovery Password at every boot.