Thanks for your suggestions guys and gals.

Thasainz - Do you mean PC specs?
Intel 4790k
GTX 1080 ti
16 GB ram
I'm running windows 10

The types of crashes I've been getting are crash to desktop, but mostly complete freezes of the game. I can't even close the game through the task manager and have to log out of windows to close the game.

Waltc - I have not installed anything that I am aware of, except for a few games, and have no reason to think my PC is under a malware attack of any kind. I'm the only one using my PC.

I'll have another look into the problems when I have time again. I do have a running speed mod installed, so maybe that is conflicting with the update.