Elmusico

I believe it's the ultimate version that i have. it was a bundle i bought on steam that contained red alert 3, red alert 3 uprising,C&C 3 tiberium wars, C&C 3 kanes wrath, and C&C 4 tiberium twilight.

The error i get when i try launching any of the C&C games is CA public key patching routine failed. I have read that it is one of the common problems and that i should try a different compatibility for it. I have tried different ones and none seem to be working it just gives me the same error message. 

I am using windows 10

Hello there I'm new to this website and thought you guys could help me. i downloaded the C&C online launcher and tried to start up Red Alert 3. when i did it gave me a message saying CA public key patching routine failed. I have read the common problems/issue thread and tried the compatibility thing but that didn't work for me either :-/ if there is another way to fix the issue please let me know how.