UFW Allow Port Range Not Opening: Fixes and Checks - Windows Update 0x80070422 Service Unavailable Fix-Fix Windows Defender Access Denied Error

Updated 2026-06-13 20:19:28cloud-software
UFW Allow Port Range Not Opening: Fixes and Checks - Windows Update 0x80070422 Service Unavailable Fix-Fix Windows Defender Access Denied Error
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.