An update …

When my Internet Explorer opens by itself it tries to go to - http://cibernegocios.com.ar/mul10.php and others with the mul10.php extension such as http://viralstrategies.com/mul10.php.

I downloaded ‘Backlight’ and while scanning it found a hidden file which I renamed, and when I restarted the PC, Avast! has kicked in as normal.

I am however still getting the Internet Explorer self starting with multiple windows, so all is still not well, and don’t know if Avast! will self start on my next re-boot.

I hope this information is proving useful.