how to fix 0x0 error

Question

how to fix 0x0 error

Dirk Taljaard 0

I have updated my Mac to Monterey 12.7.6, but I still cannot get my Word, Excel etc to activate. It still gives me 0x0 error.

Stefan Blom 351.3K Reputation points MVP Volunteer Moderator

2026-08-12T20:29:04.9566667+00:00

Which Microsoft Office license do you have? Microsoft 365 Personal or some other subscription? Or a one-time payment license such as Office Home 2024?
Chris-D 1,180 Reputation points Independent Advisor

2026-08-13T22:35:15.4533333+00:00

Hi Dirk,

I hope all is well with you.

I wanted to follow up on the issue and see if there have been any developments since our last communication.

Please let me know if there are any updates or if there's anything else I can assist with.

Looking forward to hearing from you.

1 answer

Your answer

Stefan Blom 351.3K Reputation points MVP Volunteer Moderator

2026-08-12T20:29:04.9566667+00:00

Which Microsoft Office license do you have? Microsoft 365 Personal or some other subscription? Or a one-time payment license such as Office Home 2024?
Chris-D 1,180 Reputation points Independent Advisor

2026-08-13T22:35:15.4533333+00:00

Hi Dirk,

I hope all is well with you.

I wanted to follow up on the issue and see if there have been any developments since our last communication.

Please let me know if there are any updates or if there's anything else I can assist with.

Looking forward to hearing from you.

Answer 1

Hi Dirk,

Thank you for sharing the details about your situation.

Based on the behavior you described, it appears that your Office apps may be affected by the “License Not Found” / Unknown Error 0x0 issue on macOS. Although your Mac has already been updated to macOS Monterey 12.7.6, the issue may still occur if the Office apps were installed from a source that does not match your Microsoft 365 license, or if the local Office installation is not properly detecting the license.

As the next step, please try removing the current Office apps and reinstalling Office directly from Microsoft’s download page instead of the Mac App Store.

You can follow the steps below:

Remove the Office apps from your Mac
- Open Finder
- Go to Applications
- Drag all Microsoft Office apps, such as Word, Excel, PowerPoint, Outlook, and OneNote, to the Trash
- Empty the Trash
Sign in to your Microsoft account
- Go to: https://portal.office.com/account#installs
- Sign in with the Microsoft account associated with your Microsoft 365 subscription
- Select Install Office
Download and reinstall Office for Mac
- Run the installer downloaded from the Microsoft account page
- Once the installation is complete, open Word or Excel
- Sign in again using the Microsoft account linked to your Microsoft 365 subscription

You can also refer to Microsoft’s support article here: Unknown Error 0x0 or License not found error in Microsoft 365 or Office running on macOS

If the issue continues after reinstalling Office from Microsoft’s website, please let me know.

I hope this helps move the case forward. Should you have any further questions or need additional assistance, please feel free to share them in the comment below. I'm very happy to help.

If the answer is helpful, please click 'Yes' and kindly upvote it.

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