Fix VS Code Extension Host Crashing on Startup - Resolve Port Already Allocated in Task Scheduler-Fix Windows Defender Error 0x800106ba: Failed to Start

Updated 2026-06-13 21:23:16windows-fixes
Fix VS Code Extension Host Crashing on Startup - Resolve Port Already Allocated in Task Scheduler-Fix Windows Defender Error 0x800106ba: Failed to Start
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.