At this point, I would recommend trying a BIOS update with your system, you can contact your system manufacturer or access the ASUS website to see if there is a new BIOS version for your system and make sure you have all Windows updates.
I have the same issue since the upgrade of Windows 10. I also have a Asus N551JQ notebook with built-in realsense 3D camera. Already tried everything. But at the begin of the Intel DCM and SDK software I get the error its not detected or able to validate it is a Intel product.
I self think its beceause software that I am missing. But don't know what. I had this issue already a couple of times before with windows 8.
At the begin when I did my upgrade it worked fine. But windows update crashed so I re-installed everything.
Hope you can help me!
Have you contacted Microsoft in this issue?
There is the possibility that Windows 10 upgrade caused this.
Have you been able to fix it?
In my case, it wasn't caused by the W10 upgrade, since it wasn't working on W8 either...
At this point I would recommend first to check if the drivers are properly loaded, you can check that in the device manager of access the following link:
Also, I recommend reinstalling the drivers, I know that you have done this already but I suggest restarting your system every time you install a driver for proper installation.
Based on the ASUS model you provided you can download the drivers from the ASUS website.
I strongly recommend installing the ATKPackage showing at the ASUS website to avoid any compatibility issues.
After all that is done please reinstall the Intel® RealSense™ Depth Camera Manager.