Comment Re:Depends (Score 4, Insightful) 517
Not my experience. It used to be the case in Windows 98 but I haven't found my systems to be slowing ever since I bought an SSD. SSDs solved all of my problems and they're rediculously affordable.
I also have a cluster of windows machines performing raytracing and other extremely performance driven tasks--I can't tell the age of an install based on performance.
This is all just superstition at this point without numbers. Yes if you install a third party anti-virus solution and you have a bunch of auto-installers running in the background your computer will run "Slower" than it did without anything running in the background but that's not Windows' fault and that's true of every operating system regardless if it's *nix or Win*.