Hi Sinala,
Look for this folder..
C:\Program Files\WindowsSA
and delete it, then look for this file and delete also..
C:\Windows\System32\wsaupdater.exe
Then reboot and have another go at running HJT. If that still doesn't work, then you will need to replace the hosts file in IE. You'll need the Windows disc to do this, or I can give you a link to a pre-written hosts file, especially designed to stop you having any more problems.. (within reason), but let's see how you get on with the above first.
Cheers
Liam