Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

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

You might see an error like 'Windows Defender cannot check for definitions because of an SSL cert...

You try to open a folder on Windows, and you see 'You have been denied permission to access this ...

When Maven cannot resolve dependencies, a common hidden cause is incorrect proxy configuration. Y...

When running sudo apt update on Ubuntu, you might see errors like NO_PUBKEY 12...

Fix Microsoft Store 404 Not Found Error on Reinstall
When you try to reinstall an app from the Microsoft Store and get a 404 Not Found