We think along the same lines, I've had several PC's and they all develop problems, I never download any content I don't trust, never open attachments from unknown sources, and do everything I'm supposed to do as far as maintenance and I still have problems, I personally think they come with built in problems so we will give up and buy new ones.
Associate yourself with those of good quality if you esteem your own reputation: for it is better to be alone than in bad company. George Washington