I have it installed on all of our computers here at home and have been using it for several years with no hiccups or problems. Our computers are powered up and running all the time, except for the laptops, so I have AVG set to automatically check for, download, and install new virus definitions & program updates. I also run daily scans in the middle of the night while we are all sleeping and it just never misses a beat.

Cheers
Bill