Having looked it up way further, I found an exact same issue, but for Sims 4. Seems like it's a problem with KERNELBASE.DLL, and the safest ways to fix it didn't work. And with downloading it off a dll site out of the question, I guess i'm forced to just uninstall a bunch of games and then use my Windows 10 reservation (which I really don't want to; I've broken my drivers AND crashed an entire harddrive by using Windows 10 as intended.)
Thanks for the help anyways, I'll probably say if it worked or if it's a lost cause.
Sadly I don't recall what I did to fix it. But given my issue was with a Windows .dll file, I assume running System File Checker may fix it. I've also heard that making a new user profile on Windows can fix it as well.
