I took the leap Monday and installed Windows 8 Pro. I didn’t do a clean install due the complex system I have and the number of programs and hardware that would have to be reinstalled. I chose the upgrade from Windows 7, keeping existing settings and files. This process took longer almost 55 minutes. The install asked one question, uninstall MS Security Essentials? The anti-virus is now part of the OS. I did the whole install within Windows 7. Upon completion Metro appeared, when I flipped to my desktop it was as the same original 7. Wallpaper, folders and programs were all there. MS Office, Chrome and Firefox. IE10 is remarkably fast. So far I’m extremely pleased, almost high. For those who can't live with the Start button, IObit has a free install, now my Start button even looks like the new Windows logo.