Checklists for software errors, setup, and tool workflows.

Fix Windows Security Service Not Running for Antivirus

If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...

How to Fix Windows Defender Not Starting Automatically

If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...

Debug SSH Public Key Authentication Failure: Step-by-Step

You're trying to SSH into a server with a public key, but you get "Permission denied (publickey)"...

Fix Windows Update High CPU Usage and Error 0x80070002

When Windows Update runs, you may see high CPU usage and eventually error 0x80070002. This usuall...

Fix Microsoft Teams Version Mismatch Update Required Error

Understanding the Error

When you see 'version mismatch update required' in Microsoft Team...

Windows Terminal PowerShell Not Working: Practical Fixes

If Windows Terminal opens but PowerShell doesn't load—showing a blank window, an error, or closin...