Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When a Gradle build fails with Could not find or load main class, it usually means t...

You're trying to sign in to the Microsoft Store on Windows 11, but it either hangs, shows an erro...

When you open Indexing Options and see the status stuck at "0% complete" for more than a few minu...

You open Outlook 2016 and see nothing but a blank screen—no folders, no email list, just gray. Th...

After a Windows update, you might see the error "Command Prompt service unavailable"

Fix Windows Defender Token Expired in Safe Mode
If you see a 'token expired' message when trying to run Windows Defender in Safe Mode, it usually...