When I got back to the US and visiting my mom, I got to see firsthand just how messed up her computer was. She previously had McAfee on the computer but it was so old that it was no protection at all. Her computer was running so slow that I had to do a rescue of it. I spent about two days getting all of the viruses removed and getting it running half way decent. I never thought it would take that long.
I decided to keep it from happening again by installing a quality antivirus program. I looked at a lot of them and many of them were just not my thing. I did like Avira Premium though. I liked how it could do what I needed it to do and I could feel comfortable with my mom running with it on.