[noggin]

I am having problems running HDR 10bit on a windows 10 / kodi setup. I am getting washed up colours. Is this fixable ? What powerful kodi box will provide this hassle free ?

thanks

You don't need a particularly powerful box to handle HDR these days (For some reason Intel treats HDR as 'high end' still - reserving HDR for Core-series CPU+GPUs, even though cheap ARM SoCs can handle it).   The first post in this thread is a good starting point for advice.  

Before you ditch your Windows box - which CPU are you running and how are you connecting your display to it?