Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When running nginx -t to test your configuration, you might see an error like ...

Fix 'systemd service failed to start unit not found' Error
When you run systemctl start myapp.service and get Failed to start myapp.servi...

Fix PowerShell Module Not Found Path Error
When PowerShell can't find a module you've installed, you typically see an error like Impor...

Fix Windows Activation Stuck on 'Activating'
You see 'Activating' in Settings > System > Activation, but it never finishes. This is a common g...

How to Fix CMD High Memory Usage
If you notice that Command Prompt (cmd.exe) is using an unusually high amount of memory (e.g., hu...

Fix Windows Defender High Memory Usage
If you notice Windows Defender (Microsoft Defender Antivirus) consuming a lot of memory—sometimes...