Home › Forums › SharewareOnSale Deals Discussion › O&O DiskImage 12 Pro / May 3 2020 › Reply To: O&O DiskImage 12 Pro / May 3 2020 May 3, 2020 at 7:33 am #15475069 Quote steven klarerGuest I received the registration code and entered it but I got the message that it was not valid. What should I do?