Cannot play the game since latest updates...

So I've not played in a couple of weeks, and I come back and there's a small update.

Suddenly I have nothing but crashes when I play, and I can't even finish a single simple mission before it crashes to my desktop, usually with an annoying repeating sound glitch that won't stop until I restart my computer.

I tried doing a full rescan and all that jazz, of course. No effect.
I have no idea what's going on, as I have not installed anything on my computer since last time I played (neither software nor hardware) and to date I've had nothing but rock solid performance from the game. I was streaming the game only a couple weeks ago!

The only conclusion I can make is that there's something new in the game updates that really hates my system.
There's no error messages or anything either. Just back to desktop, and that annoying sound issue. (Which may be my only clue, and I've never seen before in ANY game.)

Any advice? (For the record I'm quite a bit above the "turn it off and on again" advice.)

 

I've been trying to do this for a while now, and no dump file is created. There was one in there from earlier before I tried enabling diagnostic mode, but it's just a blank file.

Another interesting tidbit, I am unable to relaunch the game after it crashes until I reboot, and there's nothing I can find game related in the task manager to kill try to fix that (or the noise issue)

 

I did just remember there was a windows update a few days back.

 

Ok, little update, I think the windows update turned off my administrator mode (since Win updates like to wreak havoc on all manner of things on my PC)... I got the idea after the diagnostics weren't working that it might be related to Admin mode in windows, so I checked it and sure enough, it was no longer on. So I switched it back on, hoping that would fix the dump files not showing up, and started the game again.... and played a mission just fine.
Now quite bothered because I'm not sure if that was an actual FIX, or if it was just a coincidence that it didn't crash for once when I did the mission. Either way I'm not a fan of having that, or the "Non Admin Mode = Crash" hanging over my head. I will try to update if it does it again while I'm in admin mode, and Ill try diagnostics again beforehand.