Unknow error launching SC2

Hello, I wanted to play SC2, but when I launch the game, a windows with an error appear. At first it was Error 2:-1073741819 but now I get a second error number : Error 2:-1073741674.
My version is : 5.0.6.83830
Sometime, when I click on “play”, nothing happen and I have to click again on “play”, but nothing again… :-/
What can I do ? Don’t want to reinstall all the game ^^
Thanks in advance.

Hey Laconnex,

This error may be caused by another program blocking access to the game, for example anti-virus or security software. If you use any anti-virus software try temporarily disabling it.

In some cases it can also be resolved by running as administrator on the Battle.net desktop app when starting it up.