Fix Port Already Allocated Error in Microsoft Store on Windows 10 - Remote Desktop 0x104 Troubleshooting Guide-Windows Update Proxy Error Troubleshooting Guide

Updated 2026-06-13 21:36:03developer-tools
Fix Port Already Allocated Error in Microsoft Store on Windows 10 - Remote Desktop 0x104 Troubleshooting Guide-Windows Update Proxy Error Troubleshooting Guide
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.