Iam using Acer emachines725 installed windows 7 I'm not happy with windows 7,and I want 2 install windows xp... but I'm not able to istall through cd drive... becoz my drive is not reading discs properly,even thought it reads,the messag ei get your already using advanced version of windows you can't istall windows xp... cany one help me plzz... plzz solve my problem.

You have to boot to the XP CD.

Why don't you like win 7?

I think my system is slow becoz of windows 7... so I'm not happy with it...

I think Win 7 isn't the problem. On every machine I've installed Win 7 the machine has run better.

I guess if I go for win xp my dvd drive works properly... so I want to go for win xp