Fix Git 'fatal: refusing to merge unrelated histories' on GitHub - Fix 'python command not found' on Windows with Python Installed-Windows Update 0x80070005: Permission Fix Guide

Updated 2026-07-28 12:26:22macos-help
Fix Git 'fatal: refusing to merge unrelated histories' on GitHub - Fix 'python command not found' on Windows with Python Installed-Windows Update 0x80070005: Permission Fix 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.