Installation of extensions

Hello !

I had Civ5 Vanilla on my PC. Today I bought the Complete Edition (DVD).

Before installing, I uninstall my game.
The installation was good but Vanilla only ! On the notice, it was written I have to reinsert the DVD and my PC will install extension 1 and after extension 2. But when I reinsert my DVD, I have 4 options : Play, Reinstalling, unsalling, Quit but I don't see anywhere Installing the extension...
I saw how I can install via Steam but I have'nt a big connexion, that is limited...

How can I do with my DVD please ?
Thanks !

AdelineJ

PS : Sorry for the terms, I'm French...

You will have got a new steam code with your DVD. If you do not activate your new code steam will only recognise your old code, the vanilla one. You need to activate your new code on steam which will then download the expansions.
To activate your code in steam select Games>Activate a product on steam from the steam menu.