-Poison-Windows-8-Theme

I installed this theme by mr grim ( in my opinion hes the best and this is the first issue ive ever had with a theme by him) and it left me with a black screen after logging in. I can open task manager with alt+Cyril+del but that is the only thing be idea the mouse pointer that shows up.

Please don't bother with shift+f8 while starting up that does absolutely nothing