I believe the people here are unaware as to exact sources of their problems, and blame everything on microsoft by habit.
Further, I don't see how mocking microsoft is a "proof" of anything, as nothing in your piece of art has to do with microsoft. Well, except the UI of the advertisement which poses to be spyware. In a way this could be clever, but I think your point is to say that "microsoft products" are equal or somehow similar to "critical errors". This kind of expression is overly repeated and has lost its meaning already.
What could make your art to be interpreted as clever, is the fake UI. Blaming microsoft for the problems of unstability and slowness, yet clicking the image would result redirection to a page which likely installs spyware which is responsible for the issues to stability and performance. Thus, the blame for microsoft is no longer completely unfounded, since the crap mentioned in the very "advertisement" got into the system because user clicked "yes" to an innocent looking browser window.
Although clever, this view is in no contradiction with my overall stance. Computer users should know what they're doing. Web pages could ask you to download and run a software and people would still do it. The true core of the problem isn't an inherent security issue of windows, but of users who don't understand what they're doing. Are you saying users shouldn't be given this kind of power? Well, good luck trying to fit that into "users should be allowed to run anything they want to" attitude that's relatively common around windows haters, too.
I know the activex "do you trust this shit?" popups are a serious issue, because they can be forced into an infinite loop and a clueless user thinks the only way out is to say "yes". General purpose computers shouldn't be used by clueless people, not when the computer has a state they can fuck up and there's no big red undo button to save the day.