Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Windows Defender keeps asking you to sign in repeatedly—even in Safe Mode—the problem is usual...

When Chrome shows a Service Unavailable error right after you open it, the brows...

When you try to launch Google Chrome with a custom profile directory (using the --user-data...

Fix pip SSL Certificate Verify Failed Behind Proxy
When running pip install behind a corporate proxy, you may see an error like S...

Fix Windows Activation Stuck on Loading Screen
You restart your PC to activate Windows, but the activation screen hangs on a spinning circle or ...

Fix Conda Environment Solve Failure with Pip Packages
When you run conda env create or conda install and the solver hangs or ...