A Microsoft file hosting and synchronization service.
Hello Nick,
Thanks for updating us and letting us know that OneDrive can be successfully set up in the new user profile on the problematic device.
Since the problem is only with the old profile, I request you reset the OneDrive app and check the result. Reference: Reset OneDrive (microsoft.com)
If the problem still persists, I request you uninstall the OneDrive app (Go to Control Panel> Programs> Programs and Features> Right-click on the OneDrive> Uninstall).
Note; Also make sure the OneDrive folder is removed in the following path: HKEY_CURRENT_USER\SOFTWARE\Microsoft in Registry Editor)
After the uninstall. restart PC> Go to this article: OneDrive release notes (microsoft.com)> Download the OneDrive app> Try to set up your account to check the result.
Best Regards,
Stacey