This will be a short article explaining how to fix the “SIGN IN REQUIRED We can’t upload or download your changes because your cached credentials have expired” error, which can be generated by any Office applications including Word, Excel, PowerPoint etc when attempting to download, view or update files located in shared areas such as SharePoint or OneDrive.
The Solution
Follow the steps below to remove the cached credentials –
- Close all office programs.
- Open the Windows Start menu.
- Search “Credential Manager” and select the result.
- Click Windows Credentials.
- Under Generic Credentials, remove all the log-in credentials.
- Restart your computer.
- Launch the office application again and sign in if required.
Sysadmin Central 
Also did not work for me. I’ve been trying to fix this for hours and it DOESN’T WORK!!!
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This did not work for me. My problem ended up being with Teams. I delete the Teams cache
https://learn.microsoft.com/en-us/microsoftteams/troubleshoot/teams-administration/clear-teams-cache
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Have no idea what this means . . . Under Generic Credentials, remove all the log-in credentials.
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This did not work for me. Don’t know where to go with this now.
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Neither for me … don’t know what to do!? … May be should buy a Mac!!!
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kkk. If you are lost in Windows. On Mac, it will look like a blind man in the middle of a firefight. Hahaha
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This did not solve the problem for me.
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If you are lost in Windows. On Mac, it will look like a blind man in the middle of a firefight. Hahaha
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Or copy-paste the text from the open document and paste the data onto a notepad app or similar…then follow the above instructions to avoid losing your data.
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This solution does not work. How am I supposed to save my 10 pages I have typed up on Word by closing out all office programs?
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You could potentially save locally then overwrite the remote files once the problem is resolved. Otherwise it is what it is
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