how make format &install window 7

[mhmoud]

i have asus ultrabook its aready installed wondow 8 i need to format &reinstall window 7 how i make it

 

[shivababbli]

purchase windows 7, you will get a bootable dvd and later follow the steps below

http://www.wikihow.com/Install-Windows-7-%28Beginners%29