This policy setting allows you to manage the root certificate propagation that occurs when a smart card is inserted. If you ...

This policy setting allows you to manage the root certificate propagation that occurs when a smart card is inserted.

If you enable or do not configure this policy setting then root certificate propagation will occur when you insert your smart card.  Note: For this policy setting to work the following policy setting must also be enabled: Turn on certificate propagation from smart card.

If you disable this policy setting then root certificates will not be propagated from the smart card.