Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You see error 0x80070080 and Windows Update hangs at a certain percentage. This usually means a p...

When Windows Update fails with error 0x800f081f, it usually means the update component is missing...

If you see the error error: externally-managed-environment when running pip in...

Fix Node Version Incompatibility When Installing Packages
You try to install an npm package and get an error like Unsupported engine or ...

Fix Python Permission Denied on pip install --no-cache-dir
You try to install a Python package with pip install --no-cache-dir somepackage and ...

Fix ERR_NAME_NOT_RESOLVED in Chrome Safe Mode
If you see ERR_NAME_NOT_RESOLVED in Chrome while browsing in safe mode (Incognit...