Error [4wp0s] when signing into office

Question

Hi,

How do I resolve this error when attempting to sign into Microsoft Office? It occurs when I try to sign in with my regular email address. I can sign in normally with a browser.

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Message: An unexpected error occurred.

Tag: 4wp0s

Code: -2146893805

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Thanks,
AK

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Moderator: Moved from Microsoft 365 and Office | Access | For home | Windows

Answer 1

The error code -2146893805 you are encountering when trying to sign into Microsoft Office typically indicates an issue related to authentication or security settings. Here are some steps you can take to troubleshoot and potentially resolve this issue:

1. Check Security Software: Ensure that any security software or firewalls are not blocking the sign-in process. You may need to temporarily disable them to see if that resolves the issue.
2. Reinstall WAM Plug-ins: If the issue is caused by a broken or tampered Windows Authentication Module (WAM) plug-in, you can try reinstalling the WAM plug-ins. Use the following PowerShell commands:

      Add-AppxPackage -Register "$env:windir\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\Appxmanifest.xml" -DisableDevelopmentMode -ForceApplicationShutdown
      Add-AppxPackage -Register "$env:windir\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Appxmanifest.xml" -DisableDevelopmentMode -ForceApplicationShutdown
   

3. Sign in with Administrator Account: Try signing in with an administrator account and check if the issue persists. If you can sign in successfully, it may indicate a problem with user profile settings.
4. Check for Updates: Ensure that your Microsoft Office applications are up to date. Sometimes, updates can resolve underlying issues that cause sign-in problems.
5. Contact Support: If the problem continues, consider reaching out to Microsoft Support for further assistance, especially if you have specific error codes to report.

By following these steps, you should be able to address the sign-in error you're experiencing.

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References:

• Can't sign in to Microsoft 365 desktop applications