I have installed a custom theme on my machine. Now I messed it up and cannot see anything when I launch any explorer window:

The mouse icon keeps on spinning when I launch any explorer window. And the desktop appearance menu when you right click on the desktop is also a part of explorer.exe. Now I need to know if there is any software that lets me change the theme back to normal. I've already tried explorer++ but it doesn't have what I need. Please help. Thanks.
