I tried loading Minecraft one day and I found that I couldn't click anything in the main menu or go in/out of fullscreen, so I tried reinstalling Minecraft. I put in my mods and tried to load minecraft, but found it would almost instantly close and go back to the launcher, only saying that it had crashed without an error message. I've tried the latest and recommended versions of forge, as well as one version above the recommended. I then tried loading the mods one by one, and found that Minecraft would only stay open if I had one mod in the mods folder, but would start crashing if I installed any more. I have also been getting an error window about the Microsoft Visual C++ Runtime Library saying "Runtime error! Program: (blank) This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information." Vanilla versions work fine as well as Skull Project.
UPDATE: Right after I posted this thread, I discovered that I could load my mods in 3 sets and they wouldn't crash. The first is my 4 OrangeMarshall mods, but the other 2 are optifine and 5zig. If I try to load my OrangeMarshall mods with optifine or 5zig, or optifine and 5zig together, it crashes.