Upgrading the Crescendo Minidriver

Important: You must uninstall Crescendo 2300 Mini Driver 1.2 or previous versions manually using the Microsoft pnputil tool, because of the change in distribution (Windows keeps old driver DLLs in the local database, so they will reinstall it, if Crescendo Mini Driver version 1.3 or newer is uninstalled).

Procedure:

Open PowerShell in admin mode, then:

  1. Find the correct previously used driver.

    Note: Windows server does not support the /class switch.
    pnputil /enum-drivers /class smartcard

  2. Delete the driver using the published name.

    pnputil /delete-driver oem10.inf /uninstall

    (where oem10.inf was the published name)

  3. Restart the computer. This is a necessary step for Windows 11 and Windows server.

Note: It might be necessary to manually delete the files and the registry entries in the Windows server after the pnputil tool use. This might occur if the user uninstalling the driver does not have enough rights to do it. See uninstalling the driver.
Note: Starting with Minidriver 1.3 and later, manually deleting the files and the registry entries will not be necessary.