codex - 💡(How to fix) Fix Windows desktop app: Norton can block PowerShell after Codex activity

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Root Cause

The impact can be worse than a single failed Codex command: after restart, Norton may continue blocking or quarantine PowerShell-related execution, leaving the Windows environment degraded because PowerShell itself is unavailable or blocked until the AV action is manually remediated.

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Product surface

Codex Windows desktop app.

Issue

On Windows, Codex activity can trigger Norton Antivirus heuristic detections around PowerShell/script execution. Observed detections include PowerShell command-line detection and generic .ps1 script detection.

The impact can be worse than a single failed Codex command: after restart, Norton may continue blocking or quarantine PowerShell-related execution, leaving the Windows environment degraded because PowerShell itself is unavailable or blocked until the AV action is manually remediated.

Expected behavior

Codex should avoid Windows PowerShell invocation patterns that commonly trigger AV heuristics where possible, and should not lead to system-level disruption such as PowerShell being blocked after restart.

Additional context

This appears related to antivirus-sensitive PowerShell command shapes rather than repository-specific content. This report intentionally omits local paths, usernames, screenshots, and other machine-specific identifiers.

Related but not identical reports:

  • #17208 covers a similar PowerShell/AV pattern in the IDE extension surface.
  • #13919 covers a Codex App antivirus conflict with Bitdefender.

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FAQ

Expected behavior

Codex should avoid Windows PowerShell invocation patterns that commonly trigger AV heuristics where possible, and should not lead to system-level disruption such as PowerShell being blocked after restart.

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codex - 💡(How to fix) Fix Windows desktop app: Norton can block PowerShell after Codex activity