This information applies to Windows Internet Explorer 7 and Windows Internet Explorer 8.
Internet Explorer stores the information you enter into website forms and passwords that you use to log on to websites. To save hard disk space or to protect your privacy, follow these steps to delete this information.
Open Internet Options by clicking the Start button , clicking Control Panel, clicking Network and Internet, and then clicking Internet Options.
Click the General tab, and then, under Browsing history, click Delete.
Under Form data, click Delete forms, and then click Yes to confirm that you want to delete this information.
Under Passwords, click Delete passwords, and then click Yes to confirm that you want to delete this information.
Click Close, and then click OK.
Click the Safety button, and then click Delete Browsing History.
Select the check boxes next to Form data and Passwords.
Select the Preserve Favorites website data check box if you do not want to delete the form data and passwords associated with websites in your Favorites list.