VANTAS 3000 SCANNER INSTALLATION

HAVE BEEN HAVING PROBLEM WITH SYSTEM LOCATING SCANNER. CALLED MICROTEK AND THEY EMAIL ME AN UPDATE. EVERY TIME WHEN I GO TO PROPERTIES IN MY COMPUTER AND REMOVE IT AND TRY TO REFRESH IT LOCATES THE SCANNER AND TRIES TO INSTALL BUT THE COMPUTER KEEPSFREEZING UP. WHY DOES THIS KEEP HAPPENING?