How to I reinstall windows xp and get rid of Windows 7???

duke-devils

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Apr 21, 2010
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I recently installed windows 7 on my computer. I soon noticed that my computer was running extremely slow. I have been told that my 533 mhz processor is not fast enough to handle windows 7. I want to reinstall windows xp but when I run the setup disc, it will not let me install it???

Any ideas?
Thanks