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How to activate Office 2024 LTSC after system crash with fresh installation

Gero Schuetz 0 Reputation points
2026-02-09T09:38:26.9766667+00:00

My system crashed and i cannot boot my system again. now i have installed a freh version but cannot activate my office 2024 LTSC since i cannot dissable it from my old system. Support website are a circle and neither chat, nor telephone works currently. How should i proceed. any suggestions?

Microsoft 365 and Office | Install, redeem, activate | For home | Windows
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  1. DaveM121 852K Reputation points Independent Advisor
    2026-02-09T10:12:23.7233333+00:00

    Office 2024 LTSC is a volume licence version of Office used by large organizations, it is not a consumer licence, and most likely you will not be able to re-activate that Office licence, where did you purchase that Office licence, was that from an online retailer or from Groupon.

    1 person found this answer helpful.

  2. Stefan Blom 335.3K Reputation points MVP Volunteer Moderator
    2026-02-09T14:41:48.5833333+00:00

    It was an online retailer. Meanwhile I have the necessary installation ID and tried to activate via the activation portal, but the response is: according to microsoft knowledge, the activation ID is not valid. So, I still need help.

    If the online retailer led you to believe that you purchased a consumer license, you should try and get your money back. Volume licenses are not for personal use.

    If you do represent an organization (such as a business), see https://learn.microsoft.com/en-us/office/ltsc/2024/deploy .

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  3. Gero Schuetz 0 Reputation points
    2026-02-09T09:49:42.25+00:00

    The cscript command helped to install the product key, but a activation is still not possible

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  4. Q&A Assist
    2026-02-09T09:38:37.3266667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To activate Office 2024 LTSC after a system crash and fresh installation, you can follow these steps:

    1. Check Your Activation Key: Ensure you have your 25-digit activation key available. This key is necessary for activation.
    2. Use the Command Line: If you cannot deactivate Office on your old system, you can try activating it directly on your new installation. Open Command Prompt as an administrator and run the following command:
         cscript slmgr.vbs /ipk <Your-Activation-Key>
      
      Replace <Your-Activation-Key> with your actual key.
    3. Activate via Phone: If online activation fails, you can activate Office via telephone. Use the command:
         slui.exe 4
      
      This will guide you through the phone activation process.
    4. Contact Support: If you still encounter issues, consider reaching out to Microsoft Support through different channels, such as their official support page or community forums, as chat and telephone may not be available.
    5. Consider Reinstallation: If all else fails, you might want to consider uninstalling and reinstalling Office to ensure a clean activation process.

    Make sure to keep your activation key secure for future installations or system changes.

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