After update 1511, all my VMs broke as far as networking goes. The switches did not appear anymore in Network Adapters, but were still listed in the Hyper-V Switch Manager. I deleted the switches from here but when trying to recreate, I get this error below. It happens for all 3 types of switches. I've tried the nvspbind uncoupling, removing/reinstalling the Hyper-V feature, and tried to scrub my registry for the offending adapter.
I still see a Hyper-V switch listed in nvsp for some reason, but it does not appear anywhere else, including device manager. Is there a way to get rid of it from here, in case it's blocking creation of new switches?
Remove-VMSwitch -Name "Int"