>>>@neemo: Well this would be a problem if the OP removed his C: drive (Drive #0). A system partition alone on a secondary drive won't have Windows OS anywhere. That's why I asked him the question which drive he physically removed from the machine.<<<You would need to...
- Shrink the partitions on C and create a SYSTEM partition
- Copy the BCD file to the correct location on the system partition
- Modify the boot manager entry with bcdedit partition value to be partition=C: