AutoComplete is a feature in Outlook which displays suggestions for names and email addresses as you start to type them. these suggestions come from people to whom you have previously sent email.
But suppose you want to flush out the AutoComplete list — maybe your colleague’s email address has changed, or you accidentally sent email to a personal address instead of a professional one. How do you empty the AutoComplete list and start anew?
To reset the AutoComplete list:
1. Make sure Outlook is NOT running.
2. In Windows XP, click the Start menu, and then click Run. In Windows Vista or 7, click the Windows icon.
3. In the dialog box, enter the following, and then click Enter:
Outlook will start, and the AutoComplete list will be erased.