It seems you have solved the issue.
Reconfiguration is part of the conversion process, there is no need to do a separate task in the future.
Whenever something fails, an investigation might be performed for the specific case. This usually involves examining log files as a minimum.
Most often BSOD with stop 7B is related to the disk controller. Sometimes it may be related to some specific driver on the source machine.
HTH
Plamen