so i have about 20 older disc based games that wont work with my windows 10 machine or if they do work will work very poorly so i have decided i want to make a pc dedicated to playing older games from 96-07 and i want to know which operating system i should get. i was thinking either xp or vista. the games i will be playing will be older valve games like half life, half life 2, l4d. l4d2, old star wars and other lucas arts games, far cry 1 and 2, call of duty 1 and 2, fear, the old plinter cells, modded doom 1 and 2, doom 3, serious sam, the old avp games, ect. so which os has thebest compatiblity with old titles. for specs i was thinking of getting like the fastest core2quad i could find and a used gpu and 4gb of ddr2, i got a disc drive and a spare 500gb hybrid and an old sound card i can use aswell. and its gonna be purly for gaming aswell, may put some music on it but for the most part its for games.