Using the pcoip.admx file, you can change the behavior of your PCoIP connection between a virtual desktop and a VDI client. PC over IP (PCoIP) is one of the protocols that can be used by Horizon, ...
Take ownership of one of the ADMX files in the central store, and relocate it to a different folder. Then run the GPOE and look for the settings contained in that ADMX file. They will have disappeared ...