Download Microsoft Windows 7 ISO for free.
Windows 7 is one of the better one’s of microsoft’s release. Its cool look and better performance have been impressive. In contrast to Windows Vista, Windows 7 was generally praised by critics, who considered the operating system to be a major improvement over its predecessor due to its increased performance, its more intuitive interface (with particular praise devoted to the new taskbar), fewer User Account Control popups, and other improvements made across the platform.
Download Windows 7 SP1 ISO setup files (OEM Links)
Download the .iso file of windows 7 and Burn this into a bootable DVD or you can install windows, virtually using virtual box.