I have PS CS4, yes I know it's old but it is all I have
I recently got a copy of Deke's Channels and Masks for CS4 but my system (Windows 10) will not let me load Channels and Mmasks.xmp from the DVD. I get an error message saying I do not have authority and conact my system administrator. I have a stand alone PC and I am the Administrator. Can someone please help me as I am about to go crazy.