Fix Git 'index.lock file exists' Error - Fix Python Not Recognized in Windows 10 Command Prompt-Python UnicodeDecodeError: 'charmap' Codec Can't Decode Byte

Updated 2026-07-28 05:51:54windows-fixes
Fix Git 'index.lock file exists' Error - Fix Python Not Recognized in Windows 10 Command Prompt-Python UnicodeDecodeError: 'charmap' Codec Can't Decode Byte
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.