Return of Reckoning

I turned down UAC, installed DX10. 9.0c isn't compatible with windows 10 even in compatibility mode. Both War.exe and launcher are run as admin. Still get the same error.

By same problem I mean I'm getting the same error code and results as OP. I've added exceptions in my firewall and antivirus, I've rebuilt my performance whatevers, restarted my computer, made sure the files aren't read only and are unblocked, and I'm running as administrator. But I still get this ...

After removing read only, adding firewall and antivirus exceptions, making sure the files are unblocked and running as admin, getting most recent launcher, rebuilding performance whatevers, etc. I still get this error:


Data.myp:
System.InvalidOperationException: Category does not exist.
at System ...