Hi @Bizzbrain | Peter Wijntjes
Have you tried deleting the account cache files?
- Please close all Office apps and OneDrive. Unhide the system files and folders in Windows Explorer.
- Search %AppData% in Windows Search box, and navigate to Microsoft folder (
C:\Users\<Your username>\AppData\Local\Microsoft
), right click and delete the IdentityCache and OneAuth folders.
Besides, you may got to Windows Settings > Accounts > Access work or school, then removed any account that was in there by hitting Disconnect.
Go to Credential Manager, locate to Windows Credentials > Generic Credentials > remove credentials which is related Microsoft 365 and OneDrive.
Then re-open OneDrive for a check.
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