Forum Moderators: open
If I understand your question, that would be: Internet Options¦Content¦Autocomplete
Then un-check the Forms and User names and passwords on forms checkboxes.
You can access Internet Options from Control Panel or from the Tools menu in IE.
You can use Clear Search History in the pull-down menu next to the Google logo in the Google toolbar to clear the toolbar search history.
HTH,
Jim
Shak