It's a meme that Windows crashes, is bug-ridden, and is malware infested. Anyone who used 3.x, 95, 98, ME, early XP, or early Vista remembers the crashes well, as does anyone who has screwed up his PC with bad drivers, bad applications, or bad hardware. Since Windows has been the biggest target for 20 years, it has always gotten the most malware attacks, and the security issues in older versions made it easy for determined bad guys to get in with technical hacks. Nowadays, the vulnerabilities are few and difficult to exploit, which is why most modern malware is social engineering based, but people who believe in the meme, especially Linux and OSX fanatics, still use it to attack MS and Windows. Memes have a life of their own, you know, long after they cease to be true. Check the forums at C/net or ZDNet sometime - for some people, Windows has been doomed since the '90s, and THIS year will be The Year of Linux, or The Year of the Mac, or - well, you get the picture. You think the hate in phone forums is bad, you haven't seen REAL hate for corporations and products until you've read what those True Believers (some of whom are also MS zealots - they're as bad as the Apple fans and Linux lovers, sadly enough) have to say.