Hi is it normal that you can't operate a PC or my laptop whilst deep file recovery scan is in progress
I don't think that you are, or could be, physically prevented from doing what you like whilst a deep scan is running, but as the scan is very heavy on I/O any response might be so slow that you would get the impression that the device is locked. You are also altering what Recuva is scanning, with the possibility of damaging what you are attempting to recover, so it's not usual practice.