How to remove Duplicate Contacts from New Outlook

Mark Childs 0 Reputation points
2025-12-11T19:54:18.54+00:00

Why did my contacts within New Outlook get duplicated when I upgraded to Windows 11? I also started using the Link to PC app at the same time. If this caused the problem, how do I delete all the duplicates from Outlook?

Outlook | Windows | New Outlook for Windows | For home
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  1. Q&A Assist
    2025-12-11T19:54:36.4666667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    When you upgrade to Windows 11 and start using the Link to PC app, it's possible that the synchronization settings or the way contacts are managed between different applications could lead to duplicate contacts in New Outlook. To remove duplicate contacts from New Outlook, you can follow these general steps:

    1. Check for Duplicate Contacts: First, identify if the duplicates are indeed present in your contacts list.
    2. Manual Deletion: You can manually go through your contacts and delete duplicates. This can be time-consuming if you have many contacts.
    3. Use MFCMAPI: If you have many duplicates, consider using MFCMAPI to help manage and remove duplicate contacts. You can download MFCMAPI and follow the instructions to identify and delete duplicate folders or contacts.
    4. Reset Folders: After cleaning up your contacts, you may want to start Outlook with the resetfolders switch to ensure everything is in order. This can help in refreshing the folder structure in Outlook.

    Make sure to back up your contacts before making significant changes to avoid accidental data loss.

    If the duplicates persist, you may want to check the synchronization settings of the Link to PC app to ensure it is not causing further duplication.


    References:

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  2. JANSHER L 8,535 Reputation points Independent Advisor
    2025-12-11T20:38:22.66+00:00

    Hi Mark,

    Thank you for posting, I am here to help.

    To remove duplicates from your Outlook please follow this steps.

    Reinstall Microsoft 365.

    Close all Microsoft 365 products.

    Click start then search control panel. Uninstall Microsoft 365. Once done restart your device.

    After restart log in and reinstall Microsoft 365 then again enter your mail information. Waif for your profile to sync and load. Check if you are getting the same problem regarding duplicate folder.

    Let me know how this goes. Looking forward to helping you out.  If you need more help please feel free to let me know. If the answer is helpful, please click "Accept Answer".

    Best regards,

    Jansher

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