How to buy command and conquer 3 tiberium wars and command and conquer 3 kane wrath and emperor battle for dune?

tiberium wars is available if you buy the ultimate collection

https://www.origin.com/nld/nl-nl/store/command-and-conquer/command-and-conquer-the-ultimate-collection

or just get the game through steam

https://store.steampowered.com/app/24790/Command__Conquer_3_Tiberium_Wars/

Emperor battle for dune is nowhere available for sale atm but you can go dark style if you like and then you can download the game here

https://igg-games.com/emperor-battle-for-430811717-dune-free-download.html

If i buy on origin will i get the CD or program?

Digital store , so you have to download the game into your hard drive .

I don't know why i can not download update for origin, why is that? Help.

Ask people at Origin not GOG.

How to buy command and conquer 3 tiberium wars and command and conquer 3 kane wrath and emperor battle for dune?

I don't know why i can not download update for origin, why is that? Help.

Please seek advice from EA directly.

https://help.ea.com/en/origin/origin/ @Radiance - I haven't followed your link, so I'm not sure if it's a joke, but you might want to be a bit careful about linking to that type of download in an open forum. Please don't take this as a personal criticism - I just don't want to see you get in trouble for trying to help!

As an alternative, I'd suggest OP looks on eBay for Emperor Battle for Dune - it's before Steam/online activation, so copies purchased from there should work fine...

How to buy command and conquer 3 tiberium wars and command and conquer 3 kane wrath?

Look.

These games aren't on GOG. NO C&C games currently are.

But I can point you in the general direction of this open source reimplementation and maybe you'll find what you're looking for along with a translator.