In english :

Hi,

Sorry for my English mistakes, I'm French.

So basically, when I'm in a multiplayer server, I can only play for 5-10 minutes (it's pretty random) and after the error message appears: dxgi_error_device_removed

After that, I have a message that says my drivers have planted and restarted.

This error is very detrimental to play properly.
I have my options very low. All that is switched off is disabled.

Have a nice day.

How to delete the game profile ?

And I can't install DirectX from Arma 3 Steam folder.

Comme vous pouvez le voir sur ce screen , j'ai supprimé le profil crée par mon jeu mais l'erreur est toujours là ! :/

http://i.imgur.com/PzLbjqI.png