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Cowork troubleshooting checklist

Record symptoms, check service status and isolate the issue.

Use a copy with fictional data. The exercise workbook, when offered, includes an answer sheet; other files are templates to fill in.

Claude Cowork startup or VM error: diagnose the problem step by step

LearnIA — teaching template — 2026-10-14

Use fictional data for the first trial. Adapt this template to your context and verify the result before using it.

Brief to complete

  • Objective and intended decision :
  • Audience and context :
  • Documents, versions and sources :
  • Constraints and boundaries :
  • Expected output format :
  • Information to confirm :
  • Reviewer :

Starter instruction

Organize my observations into error text, time, operating system, application version, account plan, failing step and minimal reproduction. Separate observations from possible causes. Suggest one non-destructive test at a time. Do not recommend disabling security controls or deleting VM data.

Quality review

  • The exact error and version are recorded.
  • The current official documentation was checked.
  • A minimal fictional test isolates the failure.
  • Logs shared with support contain no secrets.

Verification log

ItemSource or calculationResultCorrection

Approval and next step

  • Remaining errors :
  • Assumptions to resolve :
  • Retained version :
  • Next action and owner :

Full tutorial, example and sources : https://learn-prompting.fr/blog/claude-cowork-erreur-demarrage-vm

This resource prepares a draft; it is not a certification, a grading decision, legal advice or a guarantee of results.