How to Clear the Outlook Autocomplete Cache

Posted by on September 21 2015 03:53 PM

Outlook maintains a list of nicknames that is used by both its automatic name checking feature and the automatic completion feature. The nickname list is generated automatically as you use Outlook. If the nickname cache is corrupted, Outlook may be unable to identify recipients, may offer incorrect recipients when automatically completing the email address, or may send the message to the wrong person. This article provides steps to reset or remove entries from the list, if needed.

Outlook 2013 or Outlook 2010

Open a new email message.

Type the first few characters of the nickname cache entry that you want to remove from the cache. When the entry appears in the list of suggested names, move your mouse pointer over the name until it becomes highlighted, but do not click the name. Click X to remove the name from the list.

Outlook 2007 or Outlook 2003

Open a new email message.

Type the first few characters of the nickname cache entry that you want to remove from the cache. When the entry appears in the list of suggested names, use the UP and DOWN arrow keys on your keyboard to select the entry, and then press DELETE on your keyboard.

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