stan316i 0 Junior Poster in Training

hi ,
as it seems i am full on problems
...
i dont exactly know how i managed to do this but whenever i click on a file in a window...e.g. my documents ,the window that opens its set by default on search mode and therefore doesnt open the contents of my documents but it shows the little dog (its not cute anymore...) on the left and where the contents should be appears the message "to start your search ,follow the instructions in the left panel"
now i tried to fix it from control panel/folder options/file types/folder /advanced by trying to remove the action "explore" or to set the action "open" as default but neither of these can be done because the respective buttons "remove" and "set default" cannot be selected ...
what can i do to fix this ?