So I finally got around to windows 8.1 and to my dismay
I updated to find my desktop is completely black with no task bar. All the start up programs start up like hamachi and what not. Start button doesn't work, and the screen for logging in to my user comes up but once I'm logged in the screen goes black.
Can't get a screen shot because, well, my computer doesn't work, so here's a low quality camera phone picture :)

any help would be appreciated