Well, there's no good solution to undereducated and/or stupid users. But that's not the real problem. The problem is that people can simply view a web page, something that's almost totally passive, and unknowingly get huge amounts of software installed on their computer. (It can even happen without browsing; there are enough out there that directly attack the OS.) That's something that's a technical fault, not an education one. I suppose we could educate users to not use IE at all or Windows at all, but that just falls back to "then don't do that".