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PowerShell Cache Clear Troubleshooting Checklist - Windows Defender Update Fails with 0x80240034-BitLocker 502 Bad Gateway Error Troubleshooting

2026-06-14 04:17:09
PowerShell Cache Clear Troubleshooting Checklist - Windows Defender Update Fails with 0x80240034-BitLocker 502 Bad Gateway Error Troubleshooting

Result check

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