Fix 'Port Already Allocated' Error in PowerShell on Windows 10 - Fix Windows Search and OneDrive Sync Errors-Troubleshoot 'Connection Refused' When Using CMD

Updated 2026-06-13 18:28:15developer-tools
Fix 'Port Already Allocated' Error in PowerShell on Windows 10 - Fix Windows Search and OneDrive Sync Errors-Troubleshoot 'Connection Refused' When Using CMD
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.