I shouldn't have to worry about that, with a better-organized Microsoft.
Microsoft lucked-out with XP, and it became the most stable/dependable OS they ever made - but when they started to come out with Vista, 7, etc, they redesigned the interface for each new OS. that is a bad way to do business, when upgrading anything.
Would you buy a new car, if they decided to move the steering wheel, dashboard and pedal controls to different locations, every time they came out with a new model? Of course not, because that would be stupid.
Microsoft doesn't know when to stop fiddling with things...
They should have simply done their required fixes and put new feature add-ons to XP, and then call it "Windows XP-2" - then XP-3, etc... but it's not even close to a perfect world, is it?