Intriguing as I removed search protect with FRST and the AdwCleaner run never saw it. Silly question was something downloaded in the interim ?
A small tool that may help when you download programmes
http://unchecky.com/
Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup
http://i1059.photobucket.com/albums/t432/cinjo23/uncheckysetupicon.png
or folder and choose to Run as Administrator
Once open click the Install button.
http://i1059.photobucket.com/albums/t432/cinjo23/uncheckysetupwindow.png
Then click on Finish
http://i1059.photobucket.com/albums/t432/cinjo23/uncheckyfinishsetupwindow.png
Unchecky is now installed and will help you keep unwanted check boxes unchecked 