Same if the described solutions and fixes didn’t work for you.
Although we have used Avast Free Antivirus 2016 screenshots in this article, these steps are also applicable for all Avast Antivirus solutions (i.e.
also for Avast Pro Antivirus, Avast Internet Security, or Avast Premier) running the latest version available.
Steps are relevant for all Windows versions – Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10 (including Anniversary Update).
Officially Avast Antivirus 2015 is compatible with both Windows 8 and Windows 8.1.
Users reported the issue started after they installed Avast Antivirus on their computer.
Solution #2.1 – In order to fix the blank/black screen issue follow these steps: This issue happens if you are trying to install Avast Antivirus on your computer running Windows 8.1, and you get the ‘Process Trust’ fatal error pop-up message saying ‘Avast doesn’t trust Avast Installer,’ and the process was disabled.
My name is Paul and I love Avast since the Home Edition v4.8 (2008).
General advise to avoid any compatibility issues between Windows and Avast antivirus is to keep both of them updated to the latest version.
According to Windows Compatibility Center, Avast antivirus 2014 is compatible. If you’re one of the unlucky ones, we hope this article will help you to fix your problems. This issue is extremely annoying as it causes your Windows to not start and display a blank/black screen only.