Battle net don't start even after all trouble shoot

Hi,

I have try this : https://eu.battle.net/support/en/article/16561 and this : https://eu.battle.net/support/en/article/10483 , but the application refuse to open (because it started, I can see it on the processus tab).

Note that 1 on 20 times I may get lucky and I can see the application

Could you please help me.

Cheers