CAN`T LOAD AVAST - getting popup with AVASTUI - unspecified error

Hello,

OS:SERVER 2012 STANDARD - with none antivirus
New Installation (ever) - avast protection end point 8.0.1607
I tried to change language to English
and now

I CANT LOAD AVAST - I CANT REPAIR AVAST
I CAN`T Uninstall AVAST

Always getting popup with
AVASTUI
unspecified error

Saying that something is not working without providing details is not really helpful.

What OS/SP ?
What exact version of avast ?
Did you removed any pre-installed av completely before installing avast ?
Already performed a clean installation of avast ?

I edit my post

Is it Windows 2012 or Windows 2012 R2 ?

  • SERVER 2012 STANDARD -

Is it possible to Reset to factory default from CMD?
the problem on my domain controller machine I can`t restart the all machine.

What going on?
It`s new product with license, Where is the support ?

https://support.business.avast.com