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Fix VS Code Terminal Not Opening (Exit Code 1) - Troubleshoot Windows Security 404 Page Error-Windows Defender Authentication Failed Error Fix

2026-06-13 19:22:38
Fix VS Code Terminal Not Opening (Exit Code 1) - Troubleshoot Windows Security 404 Page Error-Windows Defender Authentication Failed Error Fix

Result check

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

Next references

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