Kia koi asa triqa ha jes sa window instal hu jaya disk aur usb k alwa
Yani k hard disk men e window files copy hun aur whna sa e instal hu jayn Install Window Directly From Hard Drive

Ya triqa ha shid muja is ko detils men smjna ha
http://www.oxhow.com/install-windows-7-directly-from-hard-drive/