Background Knowledge
Every time one types an email address or name in the message window fields of “To”, “Cc” and “Bcc” of Microsoft Outlook 2003/2007/2010, a list will appear offering suggestions of users and email addresses that one can choose from to save on typing. This feature is known as “Auto-Complete” and Outlook automatically builds the list of suggestions according to the a given users activity and saves it into a file with a “NK2″ extension.
The “Auto-Complete” suggestions can be cleared, edited, or disabled by using one of the follow solutions below.
Solution – Clear Auto-Complete Suggestions
- Open Outlook.
- Click on the menu “File” -> “Options”.
- Click on “Mail” at the top left side of the “Outlook Options” dialog.
- Then scroll down to where you see a heading of “Send messages”.
- Click on “Empty Auto-Complete List”.
- Click on the “OK” button.
Solution – Edit Auto-Complete Suggestions
Please follow the instructions and information provided at the author’s web site when using NirSoft’s NK2Edit.
NirSoft NK2Edit
Solution – Disable Auto-Complete Suggestions
- Open Outlook.
- Click on the menu “File” -> “Options”.
- Click on “Mail” at the top left side of the “Outlook Options” dialog.
- Then scroll down to where you see a heading of “Send messages”.
- Uncheck “Use Auto-Complete List to suggest names when typing in the To, Cc and Bcc lines”.
- Click on the “OK” button.