Originally Posted by
Aexodus
Rule number one: back up EVERYTHING when you start messing around with program files.
And two is when vanilla isn't working, your game is either borked, or a mod has borked your game and you do sadly need to reinstall. I don't see why those two particular pack files would break your game, unless a file somewhere wasn't where it should have been, and/or overwrote a critical game file.
I didn't even ask what the issue was since vanilla isnt working, but sure, what's the issue. Is it a CTD? If so when does it occur.