It's either in the Add/Remove (you didn't tell us your OS) or in the Windows folder with a .scr extension. Delete it if it's there. If it's in A/R, uninstall it.
I downloaded a screensaver awhile back and don't want it any longer. It is called ElectriCalm 3D Screensaver from Digital Minds. I have done searches for it but don't find it. Any help with this will be greatly appreciated. Thanks!