I was asked to clean up a friends computor yesterday as he said it was slow and he had problems accessing sites.
After removing Kazza and it's associated rubbish, running Adaware, Spybot and installing Spywareblaster I still could not access hotmail or Windows Update.
On hotmail I got to the sign in stage but it returned an 'invalid password or username' report. This was with both his and my own log ins. On WU the page came up checking for updates then reported page unavailable.
I tried turning of Zone Alarm and set the security settings at minimum but nothing worked.