The smart card is locked after you change the smart card PIN for a Windows XP, Windows Vista, or Windows Server 2008-based computer
Consider the following scenario:
- In the Active Directory domain network, you issue a smart card certificate to a smart card.
- You use the smart card to log on a Windows XP-based computer that has joined the domain.
- You use a third-party tool to change the smart card PIN. You leave your smart card in the reader.
In this scenario, when the applications on your computer try to access network resources, the smart card is locked.
Note: This issue also occurs in Windows Vista and in Windows Server 2008. In Windows Vista and in Windows Server 2008, you receive the following notification:
Windows needs your current credentials Please lock this computer, then unlock it using your most recent password or smart card
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB958281.