How to format windows 7 and install windows xp

[Shadab Qasim]

Hello,i have windows xp installed earlier but i installed windows 7 but now i want to install windows xp.
when i insert windows xp disc then it says some hardware error or something and rhe screen turns black.....

 

[neon neophyte]

you cant downgrade from within windows. you have to boot from the windowsXP disc and do a fresh install over windows7

but why on earth would you want to, windows 7 is better in every possible way