These viable solutions can let you easily troubleshoot HDCP error. Reset and Update: It resets your Apple TV to factory settings and installs software updates.
Hello,
Thank you for visiting Microsoft Community and providing us with the detailed description about the issue.
As per the description, I understand that you are experiencing issue after upgrading to Windows 10, you get an hdcp error on the system.
I certainly understand your concern and will try my best to help you.
In order to understand the issue more clearly, I would request you to kindly provide me with the following information.
Which software are you using in the system to play Blu-ray DVD’s?
Have you tried any other software to play the DVD’s?
What is the exact error message along with the error code that you are getting on the system?
I would suggest you to use DVD Player app. See the following link for more information on DVD player app and check if that helps. Getting the Windows DVD Player app