Fix Windows Terminal JSON Error After Update - Fix Redis Server Not Starting: Port Already in Use-How to Resolve Windows Activation Error 0xc004f074 Using CMD

Updated 2026-06-13 13:01:34network-tools
Fix Windows Terminal JSON Error After Update - Fix Redis Server Not Starting: Port Already in Use-How to Resolve Windows Activation Error 0xc004f074 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.