I bought an HP Laptop with Ubuntu OS. I want to change it into Windows 7. How to install windows7 using windows7.iso. Please help me what to do. step by step. Thank you guys. thank you guys.
boot in to ubuntu and make windows7 bootable pendrive. you need windows7 iso image for this.
open Ubuntu software center and install unetbootin.
then use unetbootin to burn iso into pendrive ( this link explains how to burn iso in windows but same applies in ubuntu). then boot into pendrive by pressing F12(may be F8 or F2 in some) in most computers. Then click install windows. backup your data before you install windows.