Fix OneDrive Keeps Requesting Sign-In to an Old Yahoo Account
Question details
The user is experiencing persistent lock-screen prompts from what appears to be OneDrive, asking them to sign in using an old or inaccessible Yahoo email address.

- Product
- Microsoft OneDrive
- Device & OS
- not provided
- Scenario
- Encountering a recurring sign-in prompt on the system lock screen for a deprecated Yahoo account instead of the active Microsoft account.
- Observed behavior
- OneDrive or a related background process continuously requests authentication for an old Yahoo account, preventing seamless use of the device.
Ensure you have your current, active Microsoft account credentials handy and temporarily disable any third-party lock-screen customization software before proceeding with the troubleshooting steps.
Verify the Prompt Source and Check Third-Party Apps
Determine if the sign-in prompt is genuinely from OneDrive or if it is being generated by a third-party application or system plugin.
OneDrive normally only requests credentials for the active Microsoft account, not an outdated Yahoo address. Often, misleading notifications from third-party software can masquerade as official Windows or OneDrive prompts.
When the sign-in prompt appears on your screen, take a screenshot. Closely examine the dialog box's visual style, logos, and exact wording to identify if a different application is generating the notification.
Open your system settings and review your installed applications. Temporarily disable or uninstall any third-party lock-screen customization tools, widgets, or plugins that might be trying to sync data.
Confirm whether the old Yahoo account has been canceled or deleted. If it was previously linked to your Microsoft account as a recovery email, you may need to update your Microsoft security settings.

Clear Old Cached Credentials in Windows
Remove old Yahoo or Microsoft account credentials stored in your system that might be triggering the automatic sign-in attempt.
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If you are tired of dealing with persistent account sync errors and confusing sign-in loops from Microsoft OneDrive, consider switching to WPS Office. It provides a lightweight, user-friendly experience with built-in cloud synchronization that simply works without the hassle.
- 1. Download the software: Visit the official WPS Office website and download the free, lightweight installation package for your operating system.
- 2. Create a free account: Sign up easily using your current, active email address, Google account, or other preferred secure login methods.
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Frequently Asked Questions
Why is OneDrive asking for a Yahoo email password?
This usually happens if your Microsoft account was originally created using that Yahoo email address, if it's still listed as a primary alias, or if a third-party application is mistakenly triggering an authentication request under the guise of OneDrive.
How do I unlink an old email address from my Microsoft account?
Log in to your Microsoft Account online, navigate to 'Your Info', and click on 'Edit account info'. From there, you can add a new email alias, set it as primary, and then remove the old Yahoo email address.
Can third-party apps cause false OneDrive sign-in prompts?
Yes. Some custom lock-screen applications, calendar sync tools, or outdated system plugins can trigger authentication prompts that appear to be from OneDrive. Temporarily disabling these apps can help identify the culprit.
What should I do if the Yahoo account is already permanently deleted?
If the Yahoo account is permanently closed, ensure it is completely removed from your Windows Credential Manager and Microsoft account aliases so your Windows system stops attempting to authenticate it in the background.




