To remove a recent pattern,
click that pattern, and then click 
.
To remove all the recent
patterns, click 
.
The Recent Patterns list displays a list of recently performed searches. If a pattern was saved with a name, then the name appears in the list. Otherwise, the pattern itself appears.
There is a Help topic called Show results from Recent and Saved Patterns lists. It describes how you can use a recent pattern again as the current search pattern or as the basis for creating a new search pattern.
To remove a recent pattern,
click that pattern, and then click .
To remove all the recent
patterns, click .
Removing a pattern from the Recent Patterns list is not the same as deleting it from the Saved Patterns list.