There is indeed a way to do what you need to do, without buying software.
There is an excellent tutorial on doing this by Danny Sullivan the
mastermind behind the highly-esteemed Search Engine Watch site:
If you are using Internet Explorer and have the "AutoComplete"
function enabled, clicking on the Google Search text box should get a
drop-down list of your history to appear.
To remove one particular site from the history list:
"Use the arrow keys on your computer keyboard to highlight the
particular entry. Alternatively, highlight the entry using your mouse
but don't click on it! Next, once the entry has been highlighted, push
the "Delete" button on your computer keyword. The entry should
To remove *all* of the entries in the list:
"... in Internet Explorer 5 or higher, select "Tools" from the menu,
then "Internet Options" and then choose the "Content" tab. Next, look
for the button at the bottom that says "AutoComplete." Click on the
button which will make the AutoComplete Settings window appear. In it,
click on the "Clear Forms" button to delete all your stored form
However, if you are using the Google Toolbar, you will need to:
"... click on the Google logo next to the Google Toolbar's search box,
then choose "Clear Search History" from the drop-down box that
clearing Google search history
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