How do you remove an Overture hijacker?

Although I don't use internet explorer, I want to remove an homepage hijacker thats hijacked my homepage on my IE. The hijacker sets my home page to http://qca8.hpwis.com/, which is overture's website. I already tried to change my homepage to some other website but it failed. I used TweakNow RegCleaner Std, Ad-Aware SE Personal, avast! Antivirus, AVG Free, and Spybot - Search %26 Destroy but nothing worked. Does anyone know how to solve this problem. Btw, i think the hijacker came with the computer when it was new.

How do you remove an Overture hijacker?viruses

try...go to "add/remove programs" and delete all the add-on browser toolbars. ALL OF THEM

How do you remove an Overture hijacker?antispam

Viruses:

http://www.eset.com/onlinescan/ - Free online scan

http://www.free-av.com/ - Installable free antivirus

Spyware:

http://www.ewido.net/en/ - Free online scan

http://free.grisoft.com/doc/download-fre... - Installable free antispyware

http://www.safer-networking.org/en/mirro... - Installable free antispyware

http://www.superantispyware.com/ - Installable free antispyware

Firewall:

http://www.zonealarm.com/store/content/c...

Others:

http://www.nanoscan.com/as/index/ - Free online malware scan

http://www.prevx.com/freescan.asp - .exe scanner (not online but no install)
Try to remove with the help of Anti-Spyware or Anti-Virus software...

Kind Regards

Manoj Jangid

Yahoo ID : manojjangid