Originally Posted by TheOneAndOnly
Metro is not a theme. In fact, the "classic" desktop is now nothing more than a glorified app within the Metro UI. There is simply no way that I can think of that you can 'disable' Metro like you would a default theme in previous Windows versions.
The Metro UI is
Windows 8. There is no disabling it, period. Or as Mel implies, "You can run, but you can't hide"
There are hacks out there to do this (google, you'll also find an app that does it for you) , but I didn't bother with them. I'm not going to use an OS that I have to hack to death to be happy with.