Dead Space 2 major glitch level 5 boss (PC version)

I FIXED ERASING ALL INSIDE THIS FILES:

C:\Users\Walter\AppData\Local\EA Games\Dead Space 2

C:\Users\Walter\AppData\Local\Origin

Note: WALTER is the name of my computer, and I use window 7. (Remember close origin account and Dead space 2 before erase the files =)