Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You see "Windows cannot connect to your organization's activation server" or a similar message. T...

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

You open a notebook, try to run a cell, and the kernel dies or never connects. This is a common J...

When you see a 404 error in Microsoft Teams, it usually means the app can't find a specific resou...

You're trying to install or update Visual Studio, but the installer fails with error code 0x80070...

If you see a 'permission denied' message in Windows Search indexing, the search indexer can't rea...