Battle net fresh install fails

Please somebody help, I cannot reinstall the battlenet application after full delete.
Half of my day spent to make it work, but the battle net app gives me the following after clicking on it: WHOOPS, looks like something wrong etc.

So I tried everything what can be related with this issue, network change, registry clear, hidden folders clear, google search tips and so on. Nothing worked.
Is there anyone here who can give me useful tips for this problem?

Thank you.


You should be posting in the Desktop App Tech Support forum here:

Good luck with this.