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Fix High CPU Usage by MsMpEng.exe (Windows Defender) - Nginx Config Test: Invalid Parameter in Listen Directive-Fix Windows Activation Connection Timeout Error

Updated 2026-06-13 17:56:34macos-help
Fix High CPU Usage by MsMpEng.exe (Windows Defender) - Nginx Config Test: Invalid Parameter in Listen Directive-Fix Windows Activation Connection Timeout Error
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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