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OneDrive error code 0x8004de26
OneDrive Error 0x8004de26
This error typically means:
OneDrive cannot authenticate because the account type or sign-in method is blocked, mismatched, or disabled by your organization.
This indicates that the issue is affecting multiple users, not just a few.
This aligns with causes such as:
- Security Defaults or Conditional Access changes
- License or permission changes in Microsoft 365
- Firewall or network filtering affecting all devices
It’s not an isolated user/device issue, so troubleshooting should focus on tenant settings, policies, and OneDrive client configuration across the environment.
As an admin in a school or EDU Microsoft 365 tenant, here’s a step-by-step action plan to resolve OneDrive error 0x8004de26 across multiple users:
Check User Licenses
(Missing licenses will prevent OneDrive from signing in.)
Review Security Defaults & Conditional Access Policies
(Temporarily disable policies or security defaults for testing to see if users can sign in.)
Check SharePoint & OneDrive Sync Settings
(Make sure “Users can sync files from SharePoint using the OneDrive client” is enabled)
Hope this helps you a little bit.