Checklists for software errors, setup, and tool workflows.

Fix Windows Security High Memory Usage (MsMpEng.exe)

You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...

Fix GitHub Actions Docker Push Permission Denied

You run a GitHub Actions workflow that builds and pushes a Docker image, but it fails with a

Fix Windows Security Authentication Failed Event ID 4625

If you're seeing Event ID 4625 in Windows Security logs, it means an account failed to log on. Th...

Fix Windows Defender Sync Issues Between Devices

If Windows Defender isn't syncing its settings or scan history between your devices, you're not a...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

How to Fix PowerShell Failed to Start on Windows 10

When PowerShell fails to start on Windows 10, you may see an error message like "Windows PowerShe...