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How to fix the “Outlook Not Implemented” error in Outlook


The error gets displayed, when the .PST files associated with Microsoft Outlook 2003 get corrupted. You need to scan the corresponding subfolder, locate the files and repair it. Sometimes you may face situations, where you won’t be able to locate the files easily. However, you can recover those with the Lost and Found option.
The solution to the problem

Follow the instructions to fix the ‘Outlook Not Implemented’ error in Outlook:

  1. 1

    ‘Exit’ the ‘Microsoft Outlook’.

  2. 2

    Go to ‘C:Program FilesCommon FilesSystemMSMAPILocaleID’ folder.

  3. 3

    Locate ‘Scanpst.exe’ then double click on it.

  4. 4

    In the ‘Enter the name of the file you want to scan’ box, enter the name of the ‘.pst’ or ‘.ost’ file that you want to check, or click ‘Browse’ to look for the file.

  5. 5

    Click ‘Options’, and then click the option you want to specify scan log options.

  6. 6

    Click ‘Start’.

  7. 7

    If errors found while scanning then you will be prompted to start the repair process.

  8. 8

    Click ‘Repair’.

  9. 9

    ‘Start’ Outlook using the profile that contains the ‘.pst’ file that you tried to repair.

  10. 10

    On the ‘Go’ menu, click ‘Folder List’.

  11. 11

    To view subfolders, click the plus sign ‘(+)’ next to the folder.

  12. 12

    If the Folder List is not visible, on the ‘Go’ menu, click ‘Folder List’.

  13. 13

    Locate ‘Recovered Personal Folders’ in the folder list.

  14. 14

    Create a new ‘.pst’ file.

  15. 15

    ‘Drag’ the items in the ‘Lost and Found’ folder into the new .pst file.

  16. 16

    ‘Remove’ the ‘Recovered Personal Folders (.pst)’ file, including the ‘Lost and Found’ folder, from your profile.


Once you have repaired the damaged files, you can use the MS Outlook 2003 for smooth communication. It will help you in managing your messages, contacts, appointments, tasks, notes, and journal entries with just one click. You can also keep a backup of your .PST files to handle any awkward situations.

5 Responses to “How to fix the “Outlook Not Implemented” error in Outlook”
Jenna Says:
May 31st, 2013

I often encounter this error while working on outlook. The problem is whenever I try to fix the issue on my own, I get confused when to click the ‘folder list’ to locate ‘Recovered Personal Folders’. But I guess correcting the ‘Outlook Not Implemented’ error is not that much difficult. With the help of this easy and straightforward DIY solution and I will easily detangle the problem on my own. I will definitely refer to this page in case I encounter the error again.

Ravi Says:
June 3rd, 2013

I don’t find any difficulty in correcting the ‘Outlook Not Implemented’ error but the steps involved in it are time consuming. I know there is no other way to detangle it but I prefer your support service in case I face any such issue. You guys solved the issues so quickly and efficiently that I don’t feel like solving the problem on my own and neither do I trust myself to do it skillfully.

Claude Eliot Says:
December 26th, 2013

Estoy usando Outlook 2010 en mi portátil con Windows HP desde hace 6 meses. De repente me estoy haciendo Outlook no implementé tema y no estoy en condiciones de enviar y recibir correos electrónicos. Por favor, ayúdame.

Kate Says:
January 23rd, 2014

I installed Office 365 Home Premium on my Windows 8 operating system on Sony VAIO laptop. Everything works fine but after 3 to 5 days later my Outlook 2013 showing Not Implemented error. Please help me

Vijay Says:
January 23rd, 2014

Kate, In case of above steps didn’t work, I would like to suggest you following two steps to fix this error on your Windows 8

1) If you have upgraded your Outlook 2013 from old versions then make sure you are using correct version of OLMAPI32.DLL file.
2) Disable your Antivirus software and Outlook Add-ins and restart your system and then open your Outlook 2013

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