Office 2021 for Mac activation — purchased license not recognized

Question

Office 2021 for Mac activation — purchased license not recognized

Annoyed 20

I purchased Office 2021 for Mac directly from Microsoft. My Microsoft order history still shows the purchase, and I downloaded and reinstalled Office from that order. However, Word 16.114.1 on macOS Tahoe 26.6.2 says my Office 2021 license is not supported, and when I sign out and then sign back in my Microsoft account says no license found.

I have already reinstalled Word from Microsoft and restarted my Mac. I need a support agent to investigate my existing purchase and restore activation of my perpetual Office 2021 license. I do not want to purchase a Microsoft 365 subscription to replace a license I already paid for.

Børre Mofoss 0 Reputation points

2026-10-25T08:57:34.2133333+00:00

Title: Office Home & Business 2021 for Mac – activation failure after update to version 16.114.1

I have a perpetual license for Microsoft Office Home & Business 2021 for Mac, purchased as a one-time purchase and registered to my Microsoft account.

On October 25, 2026, both Word and Excel suddenly stopped working correctly. Word displays the message:

“Office 2021 license is not supported with this version of the application.”

The About Word window shows:

Version: 16.114.1 (26102031)

License: Not activated

macOS: Tahoe 26.6.2

My Microsoft account still lists Office Home & Business 2021 for Mac as a purchased product. Reinstalling the current version appears unlikely to help, since the installer offered by my account is also version 16.114.1.

Other users appear to be reporting the same issue.

Has Microsoft acknowledged this problem, and is a fix being prepared? I would prefer not to uninstall Office or downgrade manually if an official fix is imminent. I should not have to purchase a Microsoft 365 subscription to continue using a perpetual Office 2021 license.

Thank you for any clarification or assistance.
Andrew Sutphin 5 Reputation points

2026-10-25T17:35:40.7466667+00:00

I can confirm that I am experiencing the same activation problem with a valid Office 2021 for Mac license.

I purchased Office Home & Business 2021 as a one-time purchase on December 14, 2021. It is still listed in my Microsoft account under Services & subscriptions.

After an Office update on October 23, 2026, Word began displaying “Activate Microsoft 365.” My Word version is 16.114.1 (26102031), and Refresh License fails with error code 16. Excel also displays an activation prompt. Microsoft AutoUpdate offers version 16.114, but no newer update.

I have already run Microsoft's Office License Removal Tool, but the problem remains. The Microsoft licensing helper file is present in /Library/PrivilegedHelperTools.

Has anyone found a confirmed fix for this issue? In particular, can Microsoft confirm whether reverting to version 16.113 is safe and supported for Office 2021 perpetual licenses?

I use Legacy Outlook with important email folders stored under “On My Computer,” so protecting that local data is essential.

Thank you.
Stefan Blom 356.4K Reputation points MVP Volunteer Moderator

2026-10-25T17:43:05.5533333+00:00

@Andrew Sutphin

As far as I know, there has been no official comment from Microsoft yet.

The workaround, reverting back to an older build of Office, has been tested by many people by now. You should be able to use it, at least temporarily.
Ryan 0 Reputation points

2026-10-27T09:40:47.8166667+00:00
Exact same issue for me. I bought and paid for an Office 2021 perpetual license, and the update has bricked my Word, Excel, Powerpoint, etc. on Mac.

Microsoft is horrible. Here's how I fixed it myself...

Fixed: Office 2021 on Mac says "Activate Microsoft 365 to Create and Edit" after the 16.114 update

What happened

I pressed Update in Microsoft AutoUpdate on 27 Oct 2026 and Office 2021 went to build 16.114.2. Straight after, Word showed a yellow bar: "Activate Microsoft 365 to Create and Edit. Your Office 2021 license is not supported with this version of the application." Every document opened read-only and I couldn't edit or save anything.

My Mac is on macOS 26.7.1, far above the minimum, and it's the normal download version, not the Mac App Store one. My licence was fine too.

What fixed it

Going back to the 6 October build, 16.113.4 (26100421). This came from a volunteer moderator's answer on Microsoft Q&A, and two other people confirmed it. It isn't an official Microsoft fix. Removing the licence alone didn't work for two people, so I did all of these steps:

Download the 16.113.4 installer from Microsoft's update history page for Mac: https://learn.microsoft.com/en-us/officeupdates/update-history-office-for-mac Don't use the Install button on your Microsoft account page. It gives you the latest build, which is the broken one.

Check the download before you run it. Mine was 2,877,627,418 bytes. In Terminal, "pkgutil --check-signature" on the file should show Microsoft Corporation as the signer.

Run Microsoft's licence removal tool (go.microsoft.com/fwlink/?linkid=849815). It removes Office licences, Office sign-ins in Keychain and Office settings. It doesn't touch your documents. It isn't signed by Microsoft Corporation, so I read its script first.

Move Word, Excel, PowerPoint and OneNote from Applications to the Trash, then restart the Mac. I left Edge and Teams alone.

Run the 16.113.4 installer and wait for "The installation was successful". Don't open Word before it finishes.

Open Word and sign in with the Microsoft account that owns your Office 2021 licence. The yellow bar was gone and editing worked.

Stop it happening again

Never press Update in Microsoft AutoUpdate. Anything 16.114.x is the build that broke the licence.

Untick "Automatically keep Microsoft apps up to date" in AutoUpdate's preferences.

I also ran this in Terminal to set updates to manual: defaults write com.microsoft.autoupdate2 HowToCheck -string Manual

To undo it later: defaults write com.microsoft.autoupdate2 HowToCheck -string AutomaticCheck

Two honest warnings

Office 2021 went out of support on 13 Oct 2026, so there are no more security fixes. Treat this as a bridge, not a permanent home.

I haven't tested whether the old installer still installs months from now, so keep your copy.

If it doesn't hold, LibreOffice and Google Docs, Sheets and Slides are free fallbacks.

Hope that helps someone.

4 answers

Your answer

Børre Mofoss 0 Reputation points

2026-10-25T08:57:34.2133333+00:00

Title: Office Home & Business 2021 for Mac – activation failure after update to version 16.114.1

I have a perpetual license for Microsoft Office Home & Business 2021 for Mac, purchased as a one-time purchase and registered to my Microsoft account.

On October 25, 2026, both Word and Excel suddenly stopped working correctly. Word displays the message:

“Office 2021 license is not supported with this version of the application.”

The About Word window shows:

Version: 16.114.1 (26102031)

License: Not activated

macOS: Tahoe 26.6.2

My Microsoft account still lists Office Home & Business 2021 for Mac as a purchased product. Reinstalling the current version appears unlikely to help, since the installer offered by my account is also version 16.114.1.

Other users appear to be reporting the same issue.

Has Microsoft acknowledged this problem, and is a fix being prepared? I would prefer not to uninstall Office or downgrade manually if an official fix is imminent. I should not have to purchase a Microsoft 365 subscription to continue using a perpetual Office 2021 license.

Thank you for any clarification or assistance.
Andrew Sutphin 5 Reputation points

2026-10-25T17:35:40.7466667+00:00

I can confirm that I am experiencing the same activation problem with a valid Office 2021 for Mac license.

I purchased Office Home & Business 2021 as a one-time purchase on December 14, 2021. It is still listed in my Microsoft account under Services & subscriptions.

After an Office update on October 23, 2026, Word began displaying “Activate Microsoft 365.” My Word version is 16.114.1 (26102031), and Refresh License fails with error code 16. Excel also displays an activation prompt. Microsoft AutoUpdate offers version 16.114, but no newer update.

I have already run Microsoft's Office License Removal Tool, but the problem remains. The Microsoft licensing helper file is present in /Library/PrivilegedHelperTools.

Has anyone found a confirmed fix for this issue? In particular, can Microsoft confirm whether reverting to version 16.113 is safe and supported for Office 2021 perpetual licenses?

I use Legacy Outlook with important email folders stored under “On My Computer,” so protecting that local data is essential.

Thank you.
Stefan Blom 356.4K Reputation points MVP Volunteer Moderator

2026-10-25T17:43:05.5533333+00:00

@Andrew Sutphin

As far as I know, there has been no official comment from Microsoft yet.

The workaround, reverting back to an older build of Office, has been tested by many people by now. You should be able to use it, at least temporarily.

Answer 1

Hornblower409 18,135

Office for Mac Reduced Functionality - Reports involving Version 16.114.1

Update 2026-10-28 11:00 UTC

Have a report that 16.114.3 (26102720) released October 27, 2026 fixes the issue.
https://learn.microsoft.com/en-us/answers/a/13021879

Tracking multiple reports from Oct 22, 2026 involving Office for Mac entering a reduced-functionality/read-only state or failing to recognize a valid Office license. e.g.

You may have this problem if your Mac is running macOS 12 Monterey or later and your Office version is 16.114.1 (26102031) or later.

How to see what versions you have:

macOS: Apple menu → About This Mac
Office: Word → About Word (or Excel → About Microsoft Excel)

How to submit a Problem Report for this issue:

Submitting a Problem Report sends information directly to Microsoft and is generally a more effective way to help Microsoft assess the scope of this issue, than adding comments, answers, or questions in this forum.

From an Office App do Help → Feedback → Report a Problem

Include in the Report your:

macOS version
Office version
Office edition (Home & Student 2021, Home & Business 2021, etc.)

Copilot suggests this for a concise description to use in your Report (feel free to improvise).

Office for Mac perpetual license no longer recognized after update to the reported version 16.114.1. Office enters a read-only/reduced-functionality state. Unable to create, edit, or save documents. Office displays activation prompts and/or reports that the Office License is not supported.

Confirmed Workaround - Rollback to an earlier Office build and disable automatic updates.

See the Answer by EmilyS_726 Oct 2026
at https://learn.microsoft.com/en-us/answers/a/13014842

I am also tracking a Reddit post on what appears to be a similar problem:

[External Non-Microsoft Site] https://www.reddit.com/r/Office365/comments/1xd3acb/fix_mac_office_update_falsely_demanding_microsoft/

Reddit is a third-party site, not affiliated with Microsoft. I can't verify the accuracy of the information posted there or endorse the proposed workaround. The root cause described there has not been verified by Microsoft.

Thanks to Reddit user TortelliniTort who first reported the problem and a potential workaround.

Andy Piercy 20 Reputation points

2026-10-23T19:19:03.43+00:00

Emily's solution worked for me...deleted current Office apps and re-installed an earlier version. Am guessing I might have to disable install automatic updates now...wonder where that is?
Hornblower409 18,135 Reputation points

2026-10-23T19:27:08.9566667+00:00

@Andy Piercy said

Am guessing I might have to disable install automatic updates now

https://learn.microsoft.com/en-us/answers/a/13014842

open any Office app, such as Word or Excel. From the top menu, select Help > Check for Updates. When Microsoft AutoUpdate opens, uncheck Automatically keep Microsoft apps up to date, then confirm by clicking Turn Off.
Ranu Mishra 0 Reputation points

2026-10-25T06:43:34.6666667+00:00

how do we uninstall latest update and reinstall earlier version ?
Hornblower409 18,135 Reputation points

2026-10-25T06:49:29.0033333+00:00

@Ranu Mishra said

how do we uninstall latest update and reinstall earlier version ?

See the Answer by EmilyS_726 Oct 2026
at https://learn.microsoft.com/en-us/answers/a/13014842
Andy Piercy 20 Reputation points

2026-10-25T11:23:44.0966667+00:00

Emily fixed the problem for me. Had to delete current Office apps and install older versions (then switch off auto updates) in each Office app.
See the Answer by EmilyS_726 Oct 2026 at https://learn.microsoft.com/en-us/answers/a/13014842

Answer 2

Stefan Blom 356.4K MVP Volunteer Moderator

I have asked a question to a contact at Microsoft trying to figure out if this is a glitch or an intentional change. I will post back with any information I receive.

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Stefan Blom 356.4K Reputation points MVP Volunteer Moderator

2026-10-28T12:19:56.09+00:00

No "official" updates yet. Hornblower409 writes, elsewhere in the thread, that Office 16.114.3 fixes the problem. If that turns out to be correct, that is very good news, of course.

Answer 3

Hornblower409 18,135

Update 2026-10-28 11:00

Have a report that 16.114.3 (26102720) released October 27, 2026 fixes the issue.
https://learn.microsoft.com/en-us/answers/a/13021879

0 comments

Answer 4

Update: Microsoft has fixed the Office 2021 activation issue – confirmed!

Good news! Microsoft replied to the feedback report I submitted on October 25, confirming that the issue had been fixed.

Their response, received on October 28, was:

“We have fixed the issue and please update to newest version 16.114.1027.3, thanks.”

I have now updated to the latest version, and the problem is completely resolved. Word, Excel and PowerPoint all work as expected with my existing Office Home & Business 2021 license.

Before Microsoft's fix became available, I successfully restored my Office applications by rolling back to version 16.114 (26101123). This was quick and straightforward, and the existing license was recognised automatically without signing in again.

The rollback was a useful temporary workaround, but it is no longer necessary now that the fix is available.

My recommendation to anyone still experiencing this issue: update Office to the latest version through Microsoft AutoUpdate. There is no need to buy Office 2024 or a Microsoft 365 subscription to resolve this particular activation problem.

Thanks to everyone who contributed information and helped investigate this!

Stefan Blom 356.4K Reputation points MVP Volunteer Moderator

2026-10-29T15:53:29.7+00:00

@Børre Mofoss

That is very good news. I see that the release notes for 16.114.3 states that this is resolved:

https://learn.microsoft.com/en-us/officeupdates/release-notes-office-for-mac

The screen shot below is from the linked page.