Windows had a plug and play mechanism for Smart Cards. When you insert the smart card into Windows, it will look for a approriate driver and install it automatically. That will then prevent you from using the smart card with CSSI. We therefore recommend you disable PnP for smart cards using group policy. You can then uninstall the minidriver as followed:
Open the Device Manager.
Right click on the smart card.
To prevent the use of the PIV Minidriver, delete the Identity Device [NIST.....] entry under: