Fix OneDrive for Mac Blank Sign-In Window and Cross Icon
Question details
The user is unable to log in to the OneDrive for Mac client because clicking the disconnected menu bar icon opens a completely blank sign-in window.
- Product
- OneDrive for Mac
- Device & OS
- macOS
- Scenario
- Attempting to sign in to the OneDrive desktop client to synchronize files on a Mac.
- Observed behavior
- The OneDrive menu bar icon displays a cross. When the user clicks it, a 'You are not signed in' message appears, followed by a completely blank authentication window that prevents login.
Ensure you have administrator privileges on your Mac, as you will need to create a new macOS user profile to isolate the cause of this authentication failure.
Test OneDrive in a New macOS User Profile
If resetting OneDrive and clearing Keychain credentials has failed, testing in a new user profile helps determine if your current macOS profile configuration is corrupted.
When an app functions correctly on other devices or via a web browser but fails on a specific Mac despite reinstallations, the issue is often tied to the local macOS user account. Corrupted local permissions or hidden credential caches can block Microsoft's authentication window from rendering.
Click the Apple menu in the top-left corner of your Mac screen and select System Settings (or System Preferences on older macOS versions).
Navigate to 'Users & Groups'. Click 'Add Account' (you may be prompted to enter your Mac administrator password) and create a new standard or administrator user profile.
Log out of your current Mac account entirely, then sign back in using the newly created test profile.
Launch OneDrive in the new profile and attempt to sign in. If the blank window no longer appears and login is successful, your original macOS user profile is the root cause.
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- 1. Download WPS Office: Visit the official WPS Office website and download the dedicated Mac version.
- 2. Install the Application: Drag the downloaded WPS Office app directly into your macOS Applications folder and open it.
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Frequently Asked Questions
Why is my OneDrive sign-in screen completely blank on my Mac?
A blank sign-in screen is typically caused by corrupted cached credentials in your Mac's Keychain Access, blocked background Microsoft authentication services, or a damaged local macOS user profile.
How do I hard reset the OneDrive app on macOS?
Open your Applications folder, right-click the OneDrive app, and choose 'Show Package Contents'. Navigate to Contents > Resources and double-click the file named 'ResetOneDriveApp.command' to wipe the application's local cache.
Will deleting OneDrive from my Mac to fix this issue delete my cloud files?
No. Uninstalling or resetting the OneDrive app on your Mac only removes the local desktop application. Your documents remain safely stored in the cloud and will automatically resync once you reinstall the app and successfully log in.
