If you unwillingly have been infected - the best way to get rid of the parasite is to reboot your computer and tap the f8 key repeatedly to work in safe mode. Then open up a firefox browser - (your internet explorer browser has likely been exploited). and download malwarebytes or some other reputable spyware software.
(many of them are frauds - dont buy their products) They the ones who likely installed the trojan or hijacker in the first place. Some can also disable most of your legitimate programs making it look impossible to delete anything from the control panel or open your existing programs like avg and Norton.
The free version will remove all the malware from your computer and your registry.
2-spyware.com/ has a parasite encyclopedia with information and removal instructions for 7692 in their database.
Dont be suckered into bying any software unless you like the evaluation model or need to upgrade from any free ones.
This latest version of the anti-malware software was released in April 29, 2010 and has 41,000,000 downloads since the original version released December 3rd, 2009.
The license version is free