Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Fix OBS Black Screen After Game Capture Setup

You set up a game capture source in OBS Studio, but the preview shows a black screen. The game ru...

Nginx 404 Not Found Troubleshooting Checklist

When nginx returns a 404 Not Found error, it means the server is running but cannot locate the re...

Fix PowerShell High Memory Usage on Startup

If PowerShell consumes a large amount of memory (e.g., >200 MB) immediately upon opening, somethi...

How to Fix Windows Defender High CPU Usage

If your system feels sluggish and Task Manager shows Windows Defender (Microsoft Defender Antivir...

Fix 'ffmpeg command not found' After Update

After a system update, running ffmpeg in the terminal may return command not f...

Chrome High CPU When Idle: Fixes That Actually Work
You close all your tabs, walk away, and come back to find Chrome has pegged your CPU at 30–50% fo...