Command Prompt Stopped Working: How to Reset It - UFW Allow Rule Not Working: Port Still Closed-Troubleshoot DNS Lookup Failure in PowerShell

Updated 2026-06-18 16:57:11developer-tools
Command Prompt Stopped Working: How to Reset It - UFW Allow Rule Not Working: Port Still Closed-Troubleshoot DNS Lookup Failure in PowerShell
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.