Claude Code leaves 5GB error logs in temp folder after task timeouts
A user’s C drive free space dropped to 1.8GB after Claude Code, an AI tool, generated a 5GB error log in its temporary folder. The log resulted from a background task that timed out after 10 minutes and kept writing the same error (OSError: [WinError 123]) until it hit the 5GB limit, at which point it stopped but left the file intact. The user found three such files—from November 2nd and…
Key points
- Claude Code left a 5GB error log in its temp folder after a background task timed out and failed repeatedly
- Three such files were found, all from November 2nd and 4th, none automatically removed by the tool
- Users can check `%TEMP%laude asks` for large `.output` files and delete them manually via PowerShell or File Explorer
Claude Code’s temporary files are stored in %TEMP%laude asks on Windows. The user used PowerShell to sort files by size and confirmed the logs were safe to delete. After manually removing the files, free space rebounded from 1.2GB to 6.2GB. The user also set up AI-driven alerts to notify them when free space drops below 50GB and to pause heavy tasks if space falls under 30GB, preventing future disruptions. The tool’s documentation notes that timed-out tasks continue running in the background, but it does not automatically delete failed logs.
Model page: Claude Code →
C drive free space down to 1.8GB. The culprit was a 5GB error log written in the background by AI
note.com · 4 November 2026
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