Frequent Crashes -- Using RuntimeBroker.exe?

My GW2 client has been crashing like crazy -- five times an hour at the worst. I've updated my graphics drivers, swapped out GPU hardware, performed a /repair of the GW2 install, used 32-bit and 64-bit clients, etc.

Out of desperation, I examined the windows system logs and noticed that one RuntimeBroker instance happens to be failing at the same time GW2 is crashing. After a bit of research, it appears the the permissions for the runtime broker instance didn't allow my User access. I modified this one instance and I haven't had a GW2 crash since (although I've only played for a few hours). However I also ran CC cleaner and received the latest windows 10 feature update. All of these things coincide with the "no crashes in a few hours".

I have eight RuntimeBroker.exe instances running after starting GW2, so I believe this was the cause.

Anyone have any experience here that can elaborate on this?

Nope -- two crashes in last hour :(

You can contact the Tech CS Team for assistance via the 'Support' link above/below, should you care to.

And there's this: https://answers.microsoft.com/en-us/windows/forum/all/runtimebrokerexe-application-error/55e38199-9d87-4834-a9bb-6d601a85acff

Good luck.