I thought this would be an interesting discussion. I just bought my parents a PC from dell for christmas and i was contemplating what to put on their PCs for security software. My parents are relatively "Computer dumb" as most parents are and they will never know how to respond to popup messages from security software. I wanted software that would take care of everything for them without bothering them with popups. I considered the free version of avast but i opted not to use it on their PC because avast makes you go out and register for a new key every year. That is way to complex for them. It should just upgrade itself. Hell my dad sometimes get confused if he isn't automatically logged in to yahoo (because his cookie expired). Here is what i decided to go with: 1) MSE - Simple + MSE really doesn't annoy you with popups. I believe in future versions it will be automatically updated by windows update which i set their computer to automatically update every night 2) Threatfire - Been using this for a long time and i can only remember getting on popup from it. With what my parents do they should never get one. 3) OpenDNS 4) Firefox with KeyScrambler + AdBlock + Better Privacy- I usually install NoScript + FlashBlock but these would be to complex for them. 5) Uninstall IE 6) LogMeIn - So i can occassionally admin their machine 7) FoxItReader - They probably won't need it but just in case. Set them up as users instead of admins - They don't even know how to install software so they shouldn't be doing anything beyond what a normal user could do. Just a side note. I wanted all free software but if i was going for pay software i for sure would use NIS2010. NIS is great on making decisions without prompting the user what to do. Unfortunately kaspersky is not.