Checklists for software errors, setup, and tool workflows.

Fix PowerShell 404 Not Found When Downloading File

You run an Invoke-WebRequest or Start-BitsTransfer command in PowerShel...

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

How to Fix Command Prompt Authentication Failed Error

When you see “authentication failed” in Command Prompt, it usually means the system couldn’t veri...

Windows Defender Slow Performance Checklist

If your system feels sluggish and Windows Defender is likely the culprit, this checklist walks th...

Fix Microsoft Store Permission Denied Error: Reset Permissions

When you see a 'permission denied' error in Microsoft Store—often when trying to install or updat...

Fixing NGINX 502 Bad Gateway Permission Denied

If you're seeing a 502 Bad Gateway error from NGINX and the logs mention p...