Thanks to the detective skills of 'OomaThurman' on Reddit, the means now exists to improve image quality on Xbox One gameplay streaming via a PC running Windows 10. A simple text file is altered on the computer to open up a hitherto blocked off 'very high' quality preset. Utilising this mode places a greater strain on your home network in terms of data throughput, but increases the resolution of the stream. So how do you unlock the hidden quality preset? Well, assuming Windows 10 is installed on the default C:\ drive, simply navigate to C:\Users\%USERNAME%\AppData\Local\Packages\ and then locate the folder starting with "Microsoft.XboxApp". From there, open the 'userconsoledata' file using the Windows Notepad app, and where the 'IsInternalPreview' variable is set to 'false', adjust it to 'true'. Save and close the file and the very high preset is now available within Windows 10's Xbox app when you fire it up.