Hi Tech,
That is why half of the normal user PCs is owned by someone else than the man, woman or kid sitting between the keyboard and the chair near that particular PC. Why do you think so many PCs are part of a bot-network or combined bot-network, a zombie machine so to say, because everybody with two index fingers thinks he, she or it is ready to work a computer. They should have a computer license and know how to protect themselves. Now they only know you can click three ways - click left, click right and click it away, and that all by default. If the situation was not that hopeless, one could see it really is hilarious.
Computing is one of the few things in life that you do not have to be trained or educated for, which actually is not so bad for the av vendor and the repair man after all,
polonus