You can Download Windows 7 .iso here.

ok, time to leave Vista, and Switch to Windows 7, good decision for me, i must say Windows 7 kick Vista & XP ass, fosho!!! from Performance to GUI, The boot sequence is very speedy and slick and feels faster than Windows Vista. However, you will notice a new taskbar and accompanying notification area. You'll see icons for Windows Explorer and Windows Media Player in the taskbar, which are actually "pinned" shortcuts to those programs. The Taskbar functionality is totally win for me. Hovering over an icon with more than one window, it appear stacked and lets you choose any one of the windows that are open. When you hover over the thumbnails, you can also click on a red X that will appear in the corner to close that window. you can see `electricjonny's Review about Windows 7 Taskbar To pin other programs to the taskbar for easy access, just click and drag them and arrange them in the order that you want them shown in. When you open a program that is not already pinned, its icon will show up and when you close the program, the icon will disappear. Overall, we can comfortably say that Windows 7 is the best version of the Windows operating system to date.