Try using this get the free trial. http://www.ewido.net/en/
1. Turn off System Restore.
Go to Start and right-click on *My Computer*.
Click Properties.
Click the System Restore tab.
Put a Checkmark in the box next to "Turn off System Restore".
Click Apply, and then click OK.
2. Reboot.
Then in safemode run this
http://siri.urz.free.fr/Fix/SmitfraudFix.zip
After run ccleaner
This should take care of your problem