Unlike earlier versions of Outlook that store the nickname cache in a file on your computer, Outlook 2010 and later versions store the nickname cache in your primary message store. For example, if you are using a Microsoft Exchange Server account, your nickname cache is stored in a hidden message in your mailbox.
How to remove nickname cache entries, one at a time
How to clear the whole nickname cacheTo have us clear the whole nickname cache for you, go to the "Here's an easy fix" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.
Here's an easy fix:
- This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
- If you're not on the computer that has the problem, save the easy fix solution to a flash drive or a CD, and then run it on the computer that has the problem.
For Windows Vista, Windows Server 2008 or Windows Server 2003