How to programmatically turn off a usb device with one button and turn it back on?

Question

cmd/bat

Actually there is a working remote machine.
Two Rutoken keys of the same bank, but different legal entities, are inserted into it. The keys are locked from copying and cannot be copied to the registry (such a model is used in this bank).
The bottom line is that the keys do not work on the same PC at the same time and in order to enter your personal account you need to leave only the one you need, otherwise an error.
The authorities set a clear task, deviation from details is not allowed: 2. Transferring, storing and moving keys is not allowed (that is, they must be physically located in the PC, and not thrown through the RDP session, as everyone wants to suggest here) Technical support of the bank and technical support of Rutoken officially to me over the phone they said:
1. Ensure the operation of Rutoken keys in an amount of more than one at the same time or with a minimum of software manipulations before starting work with one or another key (I see how a script that will disable the usb driver on a specific port or how something like that)
It is impossible to ensure simultaneous work, let everyone carry their own key with them and pass through the rdp ".
But this answer does not suit me. What should I do? :)

Answer 1

You can solve the problem in hardware: there are USB switch chips on the market. You can use such a switch and either a physical switch, or switch the switch programmatically from a computer.

Answer 2

You can use two virtual machines. You can assemble a circuit that cuts power to each of the devices.