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Fix 'Connection Refused' Error on localhost in CMD - Windows Update Hanging at 100% – Troubleshooting Guide-Chrome Not Responding? Fix Slow Performance Step by Step

Updated 2026-06-18 02:33:47browser-issues
Fix 'Connection Refused' Error on localhost in CMD - Windows Update Hanging at 100% – Troubleshooting Guide-Chrome Not Responding? Fix Slow Performance Step by Step
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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