Think you miss understood bungral me old chap...
I no where said it was due to OS being stupid, I said "I" reformat. Simply due to having too much crap on my computer and normally having so much overclocking stuff, documents and pictures that I dont need anymore then it makes sense to do a fresh install.
I dont really see how there would be any difference between a copied OS and an original version on a disc? please explain... because as far as i know, when you rip a cd, you rip all of it, and im sure that knowing how precarious an OS install can be, if there was a single file missing, or a corrupt section then it wouldnt install at all, and ive done alot of installs of operating systems for friends, family and myself. Some legit, some not, and no one ever comes back with any bad reports or saying theres a problem.
AND!!! there are some pretty damn good OS's out there that people have made themselves adapting windows and linux. XP darklite is a nice one, aswell as some of the lite versions of both XP and vista. Probably coded better than the originals themselves to allow people to adapt them to the best systems for their computers and use.
So, ill say again, i reformat every few months out of choice, nice and clean, fresh install of drivers and games and progs, cant go wrong. Dont ya think?
(ps. and buying it is a complete waste of money)