can't install EU3

[unmerged(368282)]

Hello all, my friend tried installing EU3, and he got this message:

Does anyone have a clue how to fix this? I've searched the interwebs for a while but couldn't find anything.

"Toegang geweigerd" means "access denied", but he has full admin rights on the map.

EDIT: I don't know if this is in the right forum, I can't seem to find an EU3 support forum

 

[Castellon]

He needs to register his game here to access the tech support forum.
This forum does not provide tech support, sorry.

 

[AndrewT]

EDIT: I don't know if this is in the right forum, I can't seem to find an EU3 support forum

There is an EU3 Tech Support forum, but you can't see it as you only have two expansions registered here, not the EU3 base game or Complete. Fix that and then you can post this in there.