So I'm still troubleshooting DRM Removal for Videos on my Primary PC.. (i decided to hold off formatting and re-loading Windows on this PC until after I upgrade its CPU/Motherboard, if/when the i9-10900K becomes available).
Just to recap...
My Primary PC (call it PC #1, its an i7-8700K w/GTX1660ti graphics), uses Norton Security Suite for AV/Firewall - is having issues.
My Surface Pro 3 (Core m3) using Norton Security Suite for AV and Firewall. is not.
My Secondary PC (call it PC #2, is an i7-6700K using onboard Intel U630 graphics) which is used as my MediaServer does not have iTunes or DVDFab installed.is using Windows Defender for AV and Firewall.
Just because the i7-6700k is faster than the M3 of the SurfacePro3, I installed DVDFab and iTunes on PC#2. Upon first launch of DRM Remover, Windows Firewall gave a prompt asking me to allow or not with check boxes for Public and Private networks. I allowed on both. And was able to remove DRM from movies.
That made me consider checking firewall settings between my Surface Pro3 and PC#1. Under Settings -> Program Control, the SurfacePro3 listed DRM Removal, DVDFab and DVDFab Updater. #1 PC only had DVDFab listed.
So, on PC#1 made sure that the following were listed and set to ALLOW..
C:\Program Files\DVDFab 11\DRMRemoval.exe
C:\Program Files\DVDFab 11\DVDFab64.exe
C:\Program Files\DVDFab 11\FabUpdate.exe
PC#1 is now working (again).
What is odd is that when I disabled Norton on PC#1 (for 4hours) and tested, it still failed. So I don't really know *IF* making sure to allow these apps fixed it, or if its just a coincidence.