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Outlook 2010 has stopped remembering and autocompleting email addresses

Posted on 2011-02-23
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Last Modified: 2012-05-11
Hi I am using outlook 2010 and it has suddenly stopped remembering email addresses, after I restart the pc it loses all email addresses that i used for the day. Can someone please help.  
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Question by:Trevor_C
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by:iamshergill
ID: 34959064
This information stores in .nk2 file.

THere are 3 chances:

Chance 1: Accidently .nk2 file got deleted. If yes, it may available in Recycle Bin and you can restore it. If that is not available there, no fix then. Location of .NK2 file is "C:\Documents and Settings\User_Profile\Application Data\Microsoft\Outlook"

Chance 2: It has been disabled from Outlook by mistake. You can enable it. Follow steps mentioned in below link:
http://www.groovypost.com/howto/microsoft/outlook/disable-microsoft-outlook-2007-and-2003-email-auto-complete/

Chance 3: It has been disabled by your Administrator by Group Policy. If this is the case, no fix for this.
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by:Trevor_C
ID: 34959529
Outlook 2010 does not use a .nk2 file, in outlook 2010 the addresses are stored in some hidden autocomplete file.
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by:iamshergill
ID: 34959656
Oho I am sorry, i missed to read that it is outlook 2010. Give me some time to provide you solution.
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by:Trevor_C
ID: 34959858
Thank you for your assistance.
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iamshergill earned 500 total points
ID: 34961642
In Outlook 2010, name caching stores in hidden folder in user's mailbox or .pst file depends on settings.

If your are not able to see name caching, chances whether it has been disabled or cache is currupted which is always pron for curruption.

Please follow the below steps:

- Open Outlook > File > Option > Mail > Send Message > Disable: Auto complete option and click "Empty Auto-complete List".
- Restart Outlook
- Perform the same steps and Enable:Auto Complete Option.

This is will create a new cache. If still not work, create new Outlook profile for your mailbox.
Please let me know how it goes.

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Author Comment

by:Trevor_C
ID: 35004587
Thanks for your assistance, I have applied the solution and will only know by tomorrow morning if it.  
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Author Comment

by:Trevor_C
ID: 35024630
Great stuff thank you auto complete list now works perfectly.
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