# 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

| Item | Source or calculation | Result | Correction |
| --- | --- | --- | --- |
| | | | |

## 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.