Clearing the Outlook Autocomplete History

Microsoft Outlook has a history of addresses you have previously used.  In some case you may need to remove an incorrect listing, or completely clear the list.

Clear one entry

In some cases you may have mistyped an email address, causing it to be store in the list.  To correct this:

1. Start typing the address.
   
2. Use the arrow keys on your keyboard to highlight the address to be removed.
   

3. Press Delete on your keyboard to remove the incorrect entry.
   

Clear All Autocomplete history

Search your computer for files ending in .NK2.  You should find one file, profilename.nk2, for your outlook profile.  Rename this file to profilename.old  or profilename.bak. to reset the history.