Sorry we missed that.

Since you’ve restored an known good disk image, maybe something in that image is possibly preventing a clean install of avast!

How did you uninstall any previous a/v programs? Any a/v programs come with your system? These need to be uninstalled if present even if never used.

Avast antivirus final removal guide here: http://www.avast.com/faq.php?article=AVKB11#artTitle Use whichever tools apply and reboot after use of each one to remove any left-over drivers from previous a/v installs that will interfere with proper avast! installation.

You can get the final version of 8.0.1497 free here if 2014 9.0.2008 free does not work for you: http://www.filehippo.com/download_avast_antivirus/download/0c203d8e8244458c5da81998eb76f523/ (Filehippo direct download link to avast free 8.0.1497)

Once you’ve run any tools you need, then you’ve got a clean environment to install avast free. Should work this time.