Hi there, I have recently installed the 30 day trial for NOD32 on my father's laptop. I Have now received my paid for Username and Password. Do I have to delete the trial version (which seems to be a fully functional NOD32) and install a different version? I did try to paste in the new Username/Password which it has remembered but the 'Protection Status' page still shows the old Trial License Username/Password (there are still 10 days left on the trial license.) So, do I really have to install a different version from the link provided in my invoice? Or am I okay to just change details in my current version? Many thanks wabbit.