Doubt that since I've been running without defender and still have the problem. All these people that randomly think it/they fix it just aren't understanding how random it is. I can go days without a steamservice crash and then just like now I've had 4 in a 1 hour gaming session. Same bex crash others have experienced.
It isn't all that random for me. It happens every single time I play a VAC enabled game, generally within 20 minutes. It does not crash if you are playing games that are not VAC enabled. It is still an issue in 9926.