Many of the regulars here will know I am a huge Linux fan and hence have strayed away from Windows world for a number of years. So one could say, I'm out of touch!
However, my son's girlfriend has just bought a Windows 7 laptop for University and has asked me to install anti-virus software for her. Needless to say, as a student she's broke and so I need a free option.
So my question is, what are you all using now, that has a reasonable footprint (i.e. not a huge performance hit and bloated) and you find generally effective?
Good old AVG - the free version - is the only anti-virus product currently installed on all my computers. I've used it for years, and haven't had any problems with viruses for as long as I can remember.