To delete Autocomplete entries from the Address bar list
The AutoComplete feature saves previous entries you've
made for Web addresses, forms, and passwords. To delete
entries from the Address bar, you must clear your History
folder. You cannot clear individual entries from the list
of saved entries.
On the Tools menu in Internet Explorer, click Internet
Options.
Click the General tab.
Under History, click Clear History.
To adjust AutoComplete settings
You can configure AutoComplete to save and suggest only
the information you want. You can choose whether to use
AutoComplete for Web addresses, forms, and passwords, or
not use it all. You can also clear the history for any of
these.
In Internet Explorer, on the Tools menu, click Internet
Options.
Click the Content tab.
Under Personal information, click AutoComplete.
Select the check boxes for the AutoComplete options you
want to use.