Couldn't sign into my enterprise account.

Doing this has fixed all of ours. There is one more thing that helps. Click on Windows key. start typing to bring up search. In that search, top right you will see your account. Verify your account there. That is the last thing that helps. But the below has been necessary for tough cases.

The most effective fix for office licensing that I have found:

Logout of:

                Word

                Teams

                OneDrive

                Edge

Credential manager:

                Delete all Windows Credentials.

Registry:

                Delete:

                HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity

Files to remove:

      Delete the Licenses and Licensing folders at:

      %localappdata%\Microsoft\Office\Licenses

      %localappdata%\Microsoft\Office\16.0\Licensing

Reboot.

Give the computer a minute at boot.

      Teams should automatically start.

      Logon to it first.

      Wait 30+ Seconds. Continue to chat with our client.

Open OneDrive

      Sign in. Use the current folder.

      Wait another 30+ seconds while OneDrive syncs

            Chat with our client.  They don’t bite. :O)

Open Edge

      Logon to Office online

            I use portal.office.com

            Sign them in and then use the Waffle

            Open Word and open a blank document.

            Choose to edit it in the Desktop App.

            As it opens the Desktop app it should

            Ask you to activate office and succeed in

            Licensing it.  There are a couple of cases

            Where I had to do this twice.  The first time

            It said it updated office and to close out of

            Word/Office.  Closed and tried again and it worked.

This method has been super reliable for me. 99% of the time.

The one more thing is to verify our account in Windows search listed at the top of this post.

Any suggestions or other methods you have found to work?

From Article:

https://learn.microsoft.com/en-us/office/troubleshoot/activation/reset-office-365-proplus-activation-state

Update: Got the error again after few days, deleting that folder is not the solution. it ended up that we have to wipe the PC :(

I"ve not needed to delete that file yet. But will add to our list. That location would require Admin Rights.

One other thing we found lately that helps is to click on Start/Windows button. Start typing anything, so in the search of windows. Top right corner of that box should show your current user. If that user is having an issue it will say Verify user. If it will verify, then it helps with licensing.

I had one other really crazy user. None of the above would allow Word to Activate/license. The final thing that fix this user was to open Office.com in Chrome.. I know Crazy right. Open a word document in the browser. Then chose to continue editing it on the local machine. It finally took the Office licensing and worked. Microsoft's licensing right now is really bad. I hope they get the task they are trying to accomplish figured out so we can get back to our other work.

That worked for me aswell, delete folder:

%localappdata%\Package\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy

on the user with the problem.

But I had to do it as a local admin, and then find the problem user Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy folder.

The most effective fix for office licensing that I have found:

Logout of:

                Word

                Teams

                OneDrive

                Edge

Credential manager:

                Delete all Windows Credentials.

Registry:

                Delete:

                HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity

Files to remove:

      Delete the Licenses and Licensing folders at:

      %localappdata%\Microsoft\Office\Licenses

      %localappdata%\Microsoft\Office\16.0\Licensing

Reboot.

Give the computer a minute at boot.

      Teams should automatically start.

      Logon to it first.

      Wait 30+ Seconds. Continue to chat with our client.

Open OneDrive

      Sign in. Use the current folder.

      Wait another 30+ seconds while OneDrive syncs

            Chat with our client.  They don’t bite. :O)

Open Edge

      Logon to Office online

            I use portal.office.com

            Sign them in and then use the Waffle

            Open Word and open a blank document.

            Choose to edit it in the Desktop App.

            As it opens the Desktop app it should

            Ask you to activate office and succeed in

            Licensing it.  There are a couple of cases

            Where I had to do this twice.  The first time

            It said it updated office and to close out of

            Word/Office.  Closed and tried again and it worked.

This method has been super reliable for me. 99% of the time.

Any suggestions or other methods you have found to work?

From Article:

https://learn.microsoft.com/en-us/office/troubleshoot/activation/reset-office-365-proplus-activation-state