I don't, and I don't. On the other hand, I do know what I am clicking on, and I don't execute a program I have not explicitly trusted. (Mostly. The OS itself

I don't, and I don't. On the other hand, I do know what I am clicking on, and I don't execute a program I have not explicitly trusted. (Mostly. The OS itself trusts many programs, which trust programs…) When I download stuff from the Debian repository, I trust the Debian team to do the security scanning for me. When I download The Witness, I trust Jonathan Blow, his team, and the distribution channel not to put malware in there. When I download a crack for some game I might or might not have bough, I trust the popularity of the corresponding torrent to correlate with a lack of malware. And when a pop-up bugs me, I just close it. I won't deny my computer is at risk. It is. Unlike most people however, I can use Windows for 2 years and have almost zero malware on it. Many people on the other hand let enough malware in to lag their computer to a crawl after a few months. Education doesn't solve all problems, but it does solve many —maybe even most.