Okay, so I have been suffering with this problem for a few days after trying to return to playing MTA. I do not have any programs like cheat engine or any hex editors installed, and my computer is as up to date as possible. I'm also running the latest MTA nightly patch as of 29/02/16. Below is what I posted on my regular server's support section:
Now I have tried using Ccleaner to free up space and try and clear my PC's cache, and even completely reinstalled GTA and MTA (again), and still, absolutely no progress. Any help with this problem would really be appreciated. I've also used MTADiag and pasted the link below.
https://pastebin.mtasa.com/562832156