Hi @Gary Velasquez
To better understand where the sign-in process is failing, could you clarify which step the login loop gets stuck at?
- Does the grey window appear before you have a chance to enter your password?
- Or does it occur after entering your password?
- If your organization uses MFA, does the issue happen before or after the authentication prompt (Microsoft Authenticator, etc.)?
- Are you able to sign in successfully to OneDrive on the web with the same work account?
In addition to the steps you've already tried, could you please test the following:
- Reset OneDrive
- Clear Microsoft credentials
- Open Credential Manager > Windows Credentials.
- Remove any entries related to:
- OneDrive
- MicrosoftOffice
- ADAL
- Restart the device and try signing in again.
- Test on a different network or if you're using a VPN, temporarily disconnect it and test again.
Please try and let me know more information so I can assist you better.