Internet Explorer Issues

This is a bafflement. I have a laptop running XP-Home and IE6 SP1. He complained he could no longer reach any secured (HTTPS) site. When I checked the box, there was a copy of Norton Anti-virus that announced it was corrupted.

I uninstalled the anti-virus package and that process completed normally but I still have two issues. I can’t access a HTTPS secure web site nor can I access Windows Update.

I have scanned the system files with SFC, reregistered the dlls and still have no luck.

Any thoughts?