You can click the Tools menu at the top of the browser, select Internet options, open the dialog box, click the Content tab, click the Auto-Complete button, remove the check mark D in the box in front of the form where the auto-complete function is applied, and then confirm all the way. This will not automatically record the keyword you entered last time.

Finally, close all browser windows and reopen the browser (this step must be done, otherwise the settings will not take effect).