Tzhizhu
Home / backup-recovery / Fix OBS Black Screen with Elgato Capture Card - OneDrive Authentication Failed – Error 0x8004de40 Troubleshooting-WireGuard Handshake Not Completing: Practical Checklist

Fix OBS Black Screen with Elgato Capture Card - OneDrive Authentication Failed – Error 0x8004de40 Troubleshooting-WireGuard Handshake Not Completing: Practical Checklist

Updated 2026-06-19 06:22:42backup-recovery
Fix OBS Black Screen with Elgato Capture Card - OneDrive Authentication Failed – Error 0x8004de40 Troubleshooting-WireGuard Handshake Not Completing: Practical Checklist
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.

Related Software Guides

Fix Windows Search Not Showing Results: Practical Steps Fix Windows Search Not Showing Results: Practical Steps Fix Windows Terminal Rate Limit Error from Command Line Fix Windows Terminal Rate Limit Error from Command Line Fix pnpm Store Permission Denied After Update Fix pnpm Store Permission Denied After Update Fix Windows Search Indexing Error 0x80040c41 Fix Windows Search Indexing Error 0x80040c41 Add Artisan to PATH in Laravel: Step-by-Step Guide Add Artisan to PATH in Laravel: Step-by-Step Guide OneDrive Setup Sync Folder Not Syncing: Practical Fixes OneDrive Setup Sync Folder Not Syncing: Practical Fixes