I noticed that the PlayStation 4 has similar specifications to a PC, so I wonder if there would be a way to install Windows 10 on it. Of course I would try that on a spare disk, so if it doesn't work I would just connect the original disk back and forget about it. I know that probably Sony has disabled booting from the BD drive and the key combination to enter BIOS or change boot order is restricted to authorized technicians only. But we could partially install Windows 10 64-bit on a spare hard disk, using the imagex utility as described here. This is like running the setup and just before the first restart. So when we put the disk in the PS4, it will hopefully boot and resume Windows 10 Setup to the next stage. As for drivers, if Windows Update cannot find them all, we could try the latest chipset and graphics drivers directly from AMD. If successful the gamer would play either PS4 games booting from the original disk, or PC games booting from the spare into Windows 10. He could even use it as a normal PC.
Yes, it sounds crazy, but what do your think?