As someone who had to re-install Vista (blech!) on a friends laptop due to malware, spyware, and god knows what, making the system unbearably slow, I say good riddance! That was the absolute worst and most time consuming experience I've had with an operating system. Just setting up a basic system with spyware, virus checker, and browser took a day and a half.
Luckily, once her warranty is up, she'll ditch Win for a Linux system.
