still using xp sp3 on two of my three computers at home. Nothing they made after was better than this anyway.
they force you to upgrade your OS to benefit from the new Direct X routines for video games, but im pretty sure you could use the last DX routine on xp if they wanted to...it's just in order to sell they force the consumer to upgrade, this is pointless, XP does everything 99.99% of what the average and tech expert person need to do with their computer or tablet/smart phone.