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There is a problem with your account
I have been unable to activate office
Also check if the account is registered as an alias with live.com
If going to live,com, enter account, and it ask for a password, then there is good odds the account exist on the private side. You need the live account password. I do not know what to do if you don't have it.
thanks for your support.
I was able to resolve it by renaming the folder on registry to .old
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office
- Thank you for this. All other solutions were extremely time consuming, and this problem is actually quite common. I think it has something to do with using Microsoft products on a non-Azure computer user account, when the Office 365 user is also an Azure user. You should be able to do that without issue, but I've run into this a lot. This seems to have solved the authentication issue. I should also mention, this computer had an old install of Office 2016 Home and Business installed previously.
