I have Windows Defender on the laptop and it is good. One slightly irritating thing is that every time I boot up, it picks up "changes" which seems to be the tray link for PGP. I permit this every time and every reboot it asks me the same thing (annoying). Fortunately no other users have PGP loading on startup so it wouldn't irritate anyone else. I suppose I could always take it out of msconfig come to that.