Did you check points 1 to 4 from the earlier post?
If running Spybot Search & Destroy and Malwarebytes did not resolve the browser hijack then try Lavasoft Adaware.
If this also fails to resolve your problem then you may have been infected with a rootkit. Find a copy of CWShredder (http://free.antivirus.com/cwshredder/) which will remove the CoolWebSearch and its variants.
Will you run Cleaner and go click on the left handside click the tools link. Then click the start up link Can you copy and paste what is listed. The reason for this if your are infected with a EXE file it will be automatically starting every time you start windows. By looking in the start up page you can disable it