hi, the issue isn't Bitlocker related. it can happen even with a completely new storage device. when going through Windows setup, when it ask you to join a network (wired or WiFi) once joined it will do some thinking then come up with "enter your JoeBloggs LTD email address" - this is because it has fired the UUID back to microsoft which then realise that the unit is registered to that company on the AD accounts (if the company de-activate the unit previously it will behave normally during setup)
the issue is we sometimes sell 100's of refurbished units, and nobody knows if they are locked or not until the end user installs Windows.
so i was just thinking if there was any way of finding out if a unit was still active on any AD account before we sell on the devices it would save a lot of trouble