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Home / developer-tools / How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte - Windows 11 Installation Assistant Stuck at 99% – How to Fix-Troubleshoot VS Code settings.json Save Error

How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte - Windows 11 Installation Assistant Stuck at 99% – How to Fix-Troubleshoot VS Code settings.json Save Error

2026-07-28 11:44:40
How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte - Windows 11 Installation Assistant Stuck at 99% – How to Fix-Troubleshoot VS Code settings.json Save Error

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.