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Fix PuTTY Connection Refused After Server Restart - Windows 10 Defender Service Access Denied Troubleshooting-WinSCP Error Code 3 Permission Denied Fix

2026-06-13 12:26:56
Fix PuTTY Connection Refused After Server Restart - Windows 10 Defender Service Access Denied Troubleshooting-WinSCP Error Code 3 Permission Denied Fix

Result check

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