I have read everyone of the posts that popped in google and nothing is helping me out. I am simply trying to add a printer to this computer. Keeps coming back with the error that I need to log on as admin. I am. I use the compatability tab it is greyed out. I am not someone who wants to play with regedit. That would be computer homicide. I am using the factory disc. It is for a HP 6200 series printer.hp6210. Uac is off.