Fix Microsoft Store Error 0x80073cf0 When Updating Apps - Fix Microsoft Teams 'Port Already Allocated' Error by Clearing Cache-Fix Grayed Out Windows Defender Real-Time Protection

Updated 2026-06-14 08:17:50security-tools
Fix Microsoft Store Error 0x80073cf0 When Updating Apps - Fix Microsoft Teams 'Port Already Allocated' Error by Clearing Cache-Fix Grayed Out Windows Defender Real-Time Protection
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.