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Home / browser-issues / Fix Windows Defender Error 0x80070422: Step-by-Step Guide - Using Windows Defender on Ubuntu: What Actually Works-PuTTY Connection Refused After Reboot Fix

Fix Windows Defender Error 0x80070422: Step-by-Step Guide - Using Windows Defender on Ubuntu: What Actually Works-PuTTY Connection Refused After Reboot Fix

2026-06-13 14:52:53browser-issues
Fix Windows Defender Error 0x80070422: Step-by-Step Guide - Using Windows Defender on Ubuntu: What Actually Works-PuTTY Connection Refused After Reboot 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.