Fix Windows Security 504 Gateway Timeout After Driver Update - How to Fix BitLocker Error 0x80071771-Find PowerShell Logs for Troubleshooting

Updated 2026-06-14 17:06:27backup-recovery
Fix Windows Security 504 Gateway Timeout After Driver Update - How to Fix BitLocker Error 0x80071771-Find PowerShell Logs for Troubleshooting
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.