In case people come here via Google like I did. I found a solution that worked. The issue was incorrect permissions on the widevinecdm folder.
Another user (boomRoasted896) published this here (external link):
1.) Navigate to C:\Users\{user name}\AppData\Local\Google\Chrome\User Data
2.) right click on the "WidevineCDM" directory and go to the "Security" Tab.
3.) For me the only groups/users listed were system owner and Administrators. Add the {local machine}\Users group to the security list, read & execute, List Folder Contents and Read should suffice.
4.) I received an error saying it was not able to replicate to children folders.
5.) I then drilled down into the path further to this C:\Users\{user name}\AppData\Local\Google\Chrome\User Data\WidevineCDM\1.4.6.758\_platform_specific\win_x64 and ensured the the Users groups was added in the security tab for each directory.
6.) in the win_x64 tab you will see the widevinecdm.dll among others, make sure they all have the Users groups added to the security list.
7.) I had chrome open when I did, I needed to close it down and re-open before the fix worked. Sometimes chrome continues to run in the background I have found, so you may need to open task manager to close it there.
This is the only solution that worked for me, and seems to have fixed the issue.
Another user (boomRoasted896) published this here (external link):
1.) Navigate to C:\Users\{user name}\AppData\Local\Google\Chrome\User Data
2.) right click on the "WidevineCDM" directory and go to the "Security" Tab.
3.) For me the only groups/users listed were system owner and Administrators. Add the {local machine}\Users group to the security list, read & execute, List Folder Contents and Read should suffice.
4.) I received an error saying it was not able to replicate to children folders.
5.) I then drilled down into the path further to this C:\Users\{user name}\AppData\Local\Google\Chrome\User Data\WidevineCDM\1.4.6.758\_platform_specific\win_x64 and ensured the the Users groups was added in the security tab for each directory.
6.) in the win_x64 tab you will see the widevinecdm.dll among others, make sure they all have the Users groups added to the security list.
7.) I had chrome open when I did, I needed to close it down and re-open before the fix worked. Sometimes chrome continues to run in the background I have found, so you may need to open task manager to close it there.
This is the only solution that worked for me, and seems to have fixed the issue.