Transform Windows 7 into Ubuntu 11.04 Natty Narwhal Using “Ubuntu Skin Pack”

If you use Windows but love simple, minimal and clean look of Ubuntu, here is something interesting for you.
"Ubuntu Skin Pack" is a customization pack for Windows 7 users which can make our Windows look-like Ubuntu 11.04. The transformation pack has been created by our DA friend "hameddanger".
This pack changes almost everything in Windows 7 to transform it into Ubuntu. It changes login screen, boot screen, wallpaper, theme, start button, icons, etc. It also installs a few utilities to provide Ubuntu functionality.

It can be installed in Windows 7 SP1. It supports both 32-bit and 64-bit versions.
You can download it using following link:
Download Link
NOTE: Please create a system restore point before installing this skin pack so that you can restore default Windows look in case you don't like the new look or face any problem.