Share via

Fix Office Mac - Can't reinstall v:. 16.109.1 (16.109.26051717

Steve Kramer 0 Reputation points
2026-05-26T12:03:07.0866667+00:00

Case Number: 710308492589665 Problem returned. Cannot reinstall Office for Mac issue: v:. 16.109.1 (16.109.26051717

Microsoft 365 and Office | Install, redeem, activate | For business | MacOS
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Gabriel-N 17,785 Reputation points Microsoft External Staff Moderator
    2026-05-26T12:40:31.2566667+00:00

    Hello @Steve Kramer

    Firstly, I’d like to clarify that this is a user-to-user support forum. We are not Microsoft Support, and moderators like me do not have backend access or the ability to directly intervene in Microsoft systems. We can only provide technical guidance and best-practice recommendations based on available information.

    For the question you raised, please first refer to the response provided by AI. Meanwhile, I’d like to gather a bit more information to better understand the situation:

    • In your support ticket, what solution did Microsoft Support provide?
    • Could you share the exact error code? A screenshot would be very helpful if possible.
    • What macOS version are you currently using?

    User's image

    • Also, where did you download the Office installer from?

    You can also try downloading and reinstalling Office again using this source https://learn.microsoft.com/en-us/officeupdates/update-history-office-for-mac#release-history-for-office-for-mac as this is typically recommended to ensure a clean and compatible installation. Additionally, please note the following important compatibility points mentioned in the official Microsoft article:

    • Starting with the September 2025 update (version 16.101), macOS Sonoma or later is required to continue receiving updates for Word, Excel, PowerPoint, Outlook, and OneNote.
    • If you are using an older macOS version, Office apps may still work, but you will no longer receive updates, including security updates.
    • New installations of Office 2024 for Mac require macOS Sonoma or later.
    • Version 16.101 is the last build that supports macOS Ventura (13).
    • Version 16.88 is the last build that supports macOS Monterey (12).

    Looking forward to your reply.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    Was this answer helpful?

  2. AI answer

    2026-05-26T12:03:20.4033333+00:00

    Follow these steps to fix the reinstall problem for Office for Mac 16.109.1 and get a clean installation:

    1. Completely uninstall all current Office for Mac apps
      1. Quit all Office apps (Word, Excel, PowerPoint, Outlook, OneNote, Teams).
      2. Open Finder > Applications.
      3. Hold Command and click to select all Microsoft 365/Office apps.
      4. Press Ctrl+click on the selection and choose Move to Trash.
      5. Empty the Trash.
    2. Remove Office data and license files
      1. In Finder, click Go > Go to Folder… and enter: ~/Library/Containers/
      2. Move to Trash any folders that start with:
        • com.microsoft.Word
        • com.microsoft.Excel
        • com.microsoft.Powerpoint
        • com.microsoft.Outlook
        • com.microsoft.OneNote
      3. Go back to ~/Library and open Group Containers.
      4. Move these (if present) to Trash:
        • UBF8T346G9.ms
        • UBF8T346G9.Office
      5. Empty the Trash again.
    3. Make sure background licensing services are allowed (for macOS Sequoia/Ventura and later)
      1. Open System Settings > General > Login Items & Extensions.
      2. Under Allow in the Background, ensure entries like Microsoft Corporation and Microsoft Office Licensing are turned On.
      3. If anything was Off, turn it On and restart the Mac.
    4. Reinstall Office for Mac from the Microsoft account portal
      1. Open a browser and sign in to the Microsoft account dashboard with the same account that owns the Microsoft 365/Office license.
      2. Go to Services & subscriptions and locate the Office/Microsoft 365 product.
      3. Select Install to download the current Office for Mac installer.
      4. When the download finishes, open Finder > Downloads and double‑click the installer package (for example, Microsoft_Office_2016_Installer.pkg or newer).
      5. In the installer:
        • Click Continue on the first screen.
        • Review and Agree to the license terms.
        • Choose the install location and click Install.
        • Enter the Mac admin password when prompted and complete the installation.
    5. Activate and verify
      1. Open Word (or any Office app).
      2. Sign in with the same Microsoft account used in step 4.
      3. Confirm that the apps open without error and that no “No license found” or activation prompts persist.

    If the reinstall still fails or the same problem returns, repeat the uninstall steps and additionally run the official license removal tool referenced under “Activated but still prompted to activate,” then reinstall again from the Microsoft account portal.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.