So, before you replied, I figured out that it was in NMM. 1. I have played the game vanilla just fine, I played with a few small mods, too. Once I tried to play with FWE, I crashed when going to the wasteland regardless. I played without the mods long enough to get from inside to outside the vault, but still couldn't play with mods. After that, it just started crashing on start-up, with or without mods. 2. I tried uninstalling all mods and starting from scratch, still crashes on start-up. 3. Tried playing without mods, crashes on start-up (so I realize it's no longer a mod problem, even if that was what it originally was). 4. Now I tried deleting some stuff and redownloaded (and applied the multicore fix) and it still crashed, so I looked for and deleted anything that might have been mod related and am now repairing it so that I'm certain everything is back to normal. Then I'll start from square one. I'm just going to take it one step at a time now, but I'm still curious as to what my original problem was. I followed Xul's guide on youtube, but I'm starting to think the files never fixed themselves after the first time even though I completely reinstalled.