I have been using the free Avast antivirus since long. and it works great. I have had no problems whatsoever with it till now.
Recently, the registration expired. So, when i tried to register again, as i always do, it was not successful.
Also, then i came to know that there is now a newer version of the anti virus that won't require registration at all.
However, when i tried to install it on my old desktop PC the following error shows.
Is it because of the SP2/SP3 thing?
Are there some methods by which i can still use it on my current set up or do i need to change my set up?