Hi Guy
I am Dave, I will help you with this.
All you minidump files indicate a driver named acsock64.sys is causing the crashes.
That sems to be a virtual driver that is part of the Cisco AnyConnect Secure Mobility Client software.
The best option is to completely uninstall that software, then restart (not shut down) your PC and then download and install the latest version of that software that they provide on their website.