Thanks for the reply, but I am not too sure I wish to disturb my existing settings for the trial.
One of my home PCs is on the free version, so on receiving the AIS licenses for the 3 PCs, can I just enter the license key into the free version? Similarly on the pro version, can I just insert the AIS license key? Or do I have to download and install the AIS install file on both free and pro AV PCs? I would also have to do an uninstall and AIS install in that case, I presume?