Fix Windows Update Login Loop After Configuration Settings - Fix Windows Update Error 0x80070020: Port Already Allocated-Troubleshoot Chrome Error 12 Update

Updated 2026-06-13 14:53:31browser-issues
Fix Windows Update Login Loop After Configuration Settings - Fix Windows Update Error 0x80070020: Port Already Allocated-Troubleshoot Chrome Error 12 Update
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.