Smart Card service consumes high CPU resources after you disconnected from the Windows Server 2012 R2-based RDS

S’applique à : Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials

Symptoms


When a user connects to a Remote Desktop Server (RDS) by using a Smart Card, and then disconnects from the session but the user session stays logged on, the Scenumdevice.exe, Certprop.exe and Scardsrv.exe processes consume 100 percent of CPU resources on a single processor core.

Cause


This is a known issue with Windows Server 2012 R2.

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References


See the terminology that Microsoft uses to describe software updates.