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Error 1920 'Service Smart Card failed to start'

windowsError 1920

Symptoms

Setup fails to start the Smart Card service.

Likely cause

SCardSvr registry permissions are damaged so LOCAL SERVICE cannot start it.

Fix

See the broader Smart Card service fix - register the LOCAL SERVICE account against HKLM\Software\Microsoft\Cryptography\Calais and grant Query/Set/Create/Notify/Delete permissions. The packaged registry-fix .zip from militarycac.com automates it.

Sourced from militarycac.com. Rewritten for clarity.

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