I've purchased Pro PC Cleaner for PCs but I needed it for my laptop. I was asked to purchse a separate program for the laptop. When I tried, the system said that the program was already existing.
This is a scam. You don't need a special version for a laptop. I recommend requesting a refund for this application and choose something else that actually works and it's free/safe. Use CCleaner to remove and clean files from your computer.