Dev Kit completely locks up, can't do ANYTHING

I would really like to start messing around with the dev kit, but it’s basically unusable for me. I know that hang-ups are expected, but not like this. When I first try to copy the generic mod files into a new folder, it takes about 15-20 minutes to unfreeze. Renaming files takes like two minutes each. And given that I’m completely new to using the dev kit itself, I’m trying to explore around the existing files to get a feel of how things are set up, but just about anything I try to do locks it up for way too long. Is there something I can do to improve this? Do I need to let it just sit for a while before I start using it or something?

-PC SPECS-

CPU: i5 2500 Quad-Core 3.3GHz
RAM: 12 Gigs
GPU: nVidia GTX 750ti