Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you notice your PC slowing down and Task Manager shows SearchIndexer.exe using 50% or more CPU...

If Windows Search stops starting automatically after a reboot, your file searches may become slow...

If you've disabled Windows Defender real-time protection—perhaps to run a specific tool or becaus...

If Chrome suddenly can't load pages or you see "ERR_PROXY_CONNECTION_FAILED", the browser's proxy...

You try to install or update an app from the Microsoft Store, and you get error 0x80073cf9. Usual...

After a recent Office or Windows update, you might see an error like 'Outlook module not found' o...