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Fix BitLocker Recovery Key Blank Screen After Update - Troubleshoot Windows Defender Grayed Out Toggle-Windows Update Error 0x80070020 Registry Fix

2026-06-13 21:55:52cloud-software
Fix BitLocker Recovery Key Blank Screen After Update - Troubleshoot Windows Defender Grayed Out Toggle-Windows Update Error 0x80070020 Registry Fix

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.