Notice the Account Search window has 3 additional search tabs, AC-Campaing ID , AC-Campaign Name , and AC-Acutual Close Date . In this example we will remove these search tabs and return the search window back to it's default state.
In Preferences Search Windows Settings , you can see in the right window pane that the 3 items to be removed from the search window are highlighted, thus indicating their activity. Whenever there are additional search tabs added to the search window, they will be highlighted in this pane.
Note: You must log out and log back in to apply the changes.