Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you use Task Scheduler to run scripts that call external APIs or web services, you might see a...

When you open Command Prompt and see an error like 'invalid configuration' or 'the configuration ...

When Windows reports 'activation authentication failed' during activation, it usually means the s...

If the Microsoft Store won't open, apps fail to download, or you see error codes like 0x80072efd ...

If you see OneDrive sync error 0x80070194, it usually means Windows can't access a file because o...

When Outlook update keeps failing in Office 365, you might see error messages like “Update failed...