Thank you very much for the reply. When I open regedit, and I follow HKEY_Local_Machine tree to Explorer, there are no HideSCA* entries. Should there be?
I have searched all the applicable posts I could find here and elsewhere and I cannot seem to find a solution. I sure would appreciate some help. Two days ago, I turned my desktop PC on and my sound, network, action center and power icons were missing. I have made no software or hardware...