Hi,
I am not shure if I understand the problems, this does not hurts

  1. http://www.bleepingcomputer.com/download/adwcleaner/
  2. http://www.bleepingcomputer.com/download/junkware-removal-tool/
  3. http://en.kioskea.net/faq/6361-reset-your-browser-restore-your-browser-to-default-settings