Hi,,I'm always a little hesitant to try anything new when it comes to computers,,especially when a newer version of a program I already have comes out,,in this case the new version of avast. I read in many cases that after installing people have problems with their computers that I, as a novice would probably have a hard time fixing on my own. I have windows 7,,has there been,,to anyones knowledge here,,any big problems with avast 6 and windows 7? Just to let you know,,in the past I've never had any problems updating to the newer versions (just a little nerveous doing it),,and I didn't even un-install the older version it was replacing and everything worked fine. I've read in a few threads that you should un-install the old version,,but like I said in my case that wasn't necessary,,thanks all from an old guy who computers still scare.