I don't know if this is a Stardock issue. Since I upgraded to Stardock v2.5.1.3, Windows Explorer uses up to 75% CPU and the screen shakes from side to side. If I use the Task Manager and restart Windows Explorer, it's OK for a while but it starts doing this again after a while. I did configure the task bar, in Stardock, to be vertical on the left side. I do not have any recent Windows updates.
Moved to Start Menu Products area