/g/entlemen, what you see here is a 10year old pc
A friend asked me to wipe it and reinstall XP on it.
Had to nlite XP to 180MB for it to be "fast".
I normally put Comodo internet security on my installs but its antivirus takes up too much RAM for this struggling pc.

I will just install the firewall and then I need an antivirus that uses as little possible RAM. It ran fine before I installed IS.
Commonsense 2011 is out of the question, I'm dealing with a technologically impaired duck.
What would be some good options?