system
13
right now im testing too on a clean VM (im posting my findings in a different thread)…
i noticed there is a progress indicator.
I also noticed that in: C:\PROGRAMDATA\AVAST…\ there is a log file even if the installer fails prematurely… that path is for a win7/vista/2008 machine tho, dont know for sure where it will be put on an XP machine.
Post that log if your installation fails again (or if you can find the logfile from the current one)