BitLocker Can't Connect to External Drive: Setup Checklist - OneDrive Error 0x8004de40 Version Mismatch Fix-How to Reactivate Windows 10 After an Update

Updated 2026-06-14 09:23:30windows-fixes
BitLocker Can't Connect to External Drive: Setup Checklist - OneDrive Error 0x8004de40 Version Mismatch Fix-How to Reactivate Windows 10 After an Update
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.