[AngryCola]

If you are using Internet Explorer (IE), it's pretty easy. I'll also include how to clear the history, in case you don't know how to do that either.

1) Go to the "Tools" menu at the top of IE

2) At the bottom of the dropdown menu, select "Internet Options"

3) The "Clear History" button is on the bottom of the first window that appears.

4) Select the "Content" Tab at the top of the window

5) In the "Personal Info" section at the bottom of the new window, select the button that reads "AutoComplete".

6) At the bottom of the new window, there is a section titled "Clear AutoComplete History". The two buttons are "Clear Forms" and "Clear Passwords". The "Clear Forms" button will clear the AutoComplete history in the main address window, as well as any other website's forms.

There you go!

There is also the option to turn off AutoComplete altogether. That may be something to consider in your situation.