I understand you are having problems to play DRM protected video either within the Netflix app or the X-box Video app.
Please note that the drivers we have available for the Intel® HD Graphics 4000/2500 are fully compatible with Windows* operating systems including Windows* 8.
It is also important to mention that the drivers we provide are generic drivers since we provide the hardware to the system manufacturer like Dell, HP, Toshiba etc… and they will design and create special software for those computers.
I suggest you downloading and installing the graphics driver we have in our download page from the following link:
If during the installation of the Intel generic drivers you get this message: "driver not validated on this computer", go here for further instructions:
If issue persist after trying our generic driver, will be necessary to get the customize drivers and special support from the system manufacturer.