There is no way to uninstall Vista and roll back to a previous OS after an upgrade.
You need those XP CD's. Whoever installed XP onto your custom built system should be able to supply you with them.
Mark
Okay, here's the deal I have had windows vista premium for about a week now and it has slowed my computer down way to much compaired to XP. I thought I could get used to it but when it came time to try playing a game about 70% of what i have doesn't work right off or when you try joining a server they kick you for the wrong o/s (worked fine with XP). So I came to the point on I don't want it any more!
So my question is how do I go back to XP when my vista was a upgrade version only maybe saying its a OEM one helps. Because I am lost on that and dont know what to do to get back to windows xp and i already looked on the system restore and the farthest I can go back is right after I installed vista. Oh and my computer is a sutom built so I dont got any restore cds. Thanks.

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