I had a copy of CCleaner on my computer and have just purchased a 2 year 3 computer Professional Plus
I have installed this version OK on another computer and it seems to work fine and has correctly registered, but while CCleaner Professional Plus seems to install on this computer it keeps saying the details are incorrect and it wont accept the product key so i cant get it registered on a second computer. It seems to work OK but of course says its an unregistered version. What am i doing wrong please.
Mike R
