8 Skin Pack designed by a DeviantArt member hameddanger is the latest Windows 8 Ultimate Edition Transformation pack which provides lots of new features along with a newly designed interface. Though it looks very similar to the windows 7 and windows vista, there are many new changes like the redesigned taskbar, Explorer, new boot screen, login screen and so on. If you want to have a taste of what Windows 8 Should or might be, you can try this Windows 8 Transformation pack!
Here is the link where you can download the Windows 8 Transformation pack: 8 Skin Pack 1.0 For 7. A wizard will guide you through the installation of 8 Skin Pack 1.0 For 7.
Note: Please keep in mind that such transformation packs can be painful to get rid off and sometimes even a system restore point will not revert the changes. We recommend you to backup your computer before installing the Lion Skin Pack, so that you can revert the changes if required.
Also check out the Mac OS X Lion and Mac OS X Snow Theme / Transformation Pack For Windows 7