At what time of installation of Windows did you try to install Avira? I tried installing it again under Virtual Machine and it works without problems. I'm using WPI to install programs for Unattended Windows.
Hello all. I modified col400's Antivir8_AOM so that it installs Avira 9 Personal. col400, I hope you don't mind? I also removed option for creating nlite addon. Anyways, here's the link - Antivir9_AOM