Fix npm Command Not Found Error Code 1 - How to Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome on Windows 10-How to Analyze Windows Security Logs

Updated 2026-06-14 11:50:44browser-issues
Fix npm Command Not Found Error Code 1 - How to Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome on Windows 10-How to Analyze Windows Security Logs
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.