I had my game running perfect for months, running 20 mods or so. I decided to download the West Tek Tactical Optics mod. I installed it and when I went to play my game, at the main menu as soon as I select continue or and of my saved games to load, it crashes. So I un-installed the optics mod and tried again. Same thing. I looked through everything and I couldn't find any issues. So, I tried disabling each mod and looked for anything extra other than strings and videos. I did find a file that had something from the Optics mod, so I deleted it and re-enabled each mod making sure to check as you said and everything looked good. But, no, same thing. Frustrated and now out of time as I don't have much to play with the exception of every Tuesday night, I bookmarked all the mods I had and un-installed every mod and the NMM. And I restarted my laptop entered steam to verify my games cache, which came up with no issues at all. I was feeling fairly confident that at the main menu, the continue or saved games would load without a hitch. But no, still it crashes. And I've never had an issue before. Don't get me wrong, I am in no way insinuating that the West Tek Tactical Optics mod was the cause of whatevers going on. I just want to make that clear. So I tried to start a new game just to see and to my amazement, it worked without any issues. That is without NMM and any mods installed. I have yet to try un-installing and re-installing the actual Fallout 4 game on my laptop as you did have as a to try at the very last thing to do on your list. I would rather not have to do that as it does consume a large amount of bandwidth. Nor have I re-installed NMM and all of my bookmarked mods either. I am hoping that you or someone reading rhis has any kind is solution for me to at least try. Because at this point. I've lost the countless hours I've put into my saved games and I have to re-download all my mods and get them all in order. This is just a absolute nightmare. And btw, I did try to download the mod "Crash to Desktop (CTD) Cure all" file but I from what I remember, it seemed a little over my head. Anyways, any tips, advice and/or possible solutions would be extremely appreciated! I just want to play my game. And I have already purchased the first dlc "Automatron" and I was very much so looking forward to purchasing the other two. Plus the creation kit was just released. Like worst timing ever or what. So if you have anything for me to try, anything at all, please let me know. Thanks again!