Error code 29 when starting O365

Anonymous
2023-12-05T02:59:44+00:00

I get this message every time I start Word or Excel and enter my valid email account name:

Apps show correct account when I acknowledge and enter program.

Microsoft 365 and Office | Subscription, account, billing | For home | Windows

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  1. Anonymous
    2024-05-18T17:21:28+00:00

    I applied an MS 365 update this morning. Did not fix code 29 with pending deactivation warning due on May 28.

    Come on MS, help with this! Terrible free 30 day trial of Copilot Pro causing this!!!!

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  2. Anonymous
    2024-05-16T12:36:01+00:00

    Dear all,

    the Error 29 could be solved:

    1). open command prompt as Admin

    2). cd c:\Program Files\Microsoft Office\Office16\

    3). cscript ospp.vbs /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

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  3. Anonymous
    2024-04-18T18:00:18+00:00

    I have managed to cause this issue and painfully resolve the issue. Although may not be same for all users worth a quick check if you have date and time set correctly.

    First of all I followed the instructions to delete cache, made no difference.

    Tried a re-install from being logged into my subscription, made no difference.

    Then I cleared all the cookies and this cleared some of the hotmail login info that is normally stored there.

    Now when I logged back still was unlicensed and I tried to then authenticate myself in office . Now instead of error 29 it complained about date/time issue instead . I had previously changed my date and time while doing some testing on some batch files. Anyway I went back into date and time settings and set it to automatic, restarted word and PowerPoint and they are all now up and running no error 29 !

    Hope this at least helps one other person !!

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  4. Anonymous
    2024-02-20T21:57:26+00:00

    Same issue with one of my users, it's device specific.
    Uninstalled O365, reinstalled
    signed out / signed back in, removed everything from windows credential manager

    ran the https://aka.ms/SaRA-OfficeUninstall-sarahome  tool also ran all the suggestions here: https://aka.ms/SaRA-OfficeActivation-sarahome

    Still got error code 29 any time trying to activate the license for the user on their computer.

    Solution: (this is heavy handed and time consuming, but the only option at this point:) backup the users profile, documents, desktop items, export browser settings, anything user specific. Log out of the user account as on as an administrator, go to the advanced tab under system properties / click settings under user profiles and delete the user profile. https://prnt.sc/u1yqhX_JlozW  after the profile is deleted, log the user on again, a brand new profile is created and the Office 365 apps work. restore all the settings you backed up prior to deleting the profile.

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  5. Anonymous
    2024-02-14T11:26:30+00:00

    I am still getting the Error 29. Any other suggestions?

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