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Home / developer-tools / Fix Remote Desktop Gateway Server Unavailable Error Code 500 - Fix 'Permission Denied' When Windows Searches External Drive-BitLocker Backup Tool Not Seeing Drive: Troubleshoot

Fix Remote Desktop Gateway Server Unavailable Error Code 500 - Fix 'Permission Denied' When Windows Searches External Drive-BitLocker Backup Tool Not Seeing Drive: Troubleshoot

2026-06-13 21:52:37
Fix Remote Desktop Gateway Server Unavailable Error Code 500 - Fix 'Permission Denied' When Windows Searches External Drive-BitLocker Backup Tool Not Seeing Drive: Troubleshoot

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.