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Error 0x8004def4 when signing in to OneDrive

  • Applies to: OneDrive for Business

Symptoms

You can't sign in to Microsoft OneDrive, and you receive the following error message: 

Sorry, there was a problem with OneDrive. Please restart your computer. If the problem persists, please reinstall OneDrive. (Error Code: 0x8004def4)

Cause

This issue might occur for different reasons. This includes conditions such as a folder name conflict, or situations such as synchronizing an existing OneNote notebook with the OneDrive sync app without going through the OneNote application.

Resolution

To fix issues that are caused by folder name conflicts or OneNote notebook synchronization, use Microsoft Support and Recovery Assistant.

  1. Download and install Microsoft 365 Support and Recovery Assistant.

  2. Select OneDrive for Business > Next.

    Screenshot of a list of apps that might be experiencing issues that shows OneDrive for Business as highlighted.

  3. Select I need help syncing my OneDrive files, and then select Next.

    Screenshot of the page to select the issue that you are experiencing that shows syncing Drive files as highlighted.

If the Assistant can't resolve the issue, the cause might be something other than sync conflicts. In this case, try to Reset OneDrive. If the issue persists, uninstall OneDrive, and then reinstall it.