Checklists for software errors, setup, and tool workflows.

Microsoft Store SSL Certificate Error: Troubleshooting Checklist

You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

Windows Activation Token Expired After Hardware Change: Fix

After replacing a motherboard, CPU, or hard drive, you may see a message that your Windows activa...

Fix PowerShell 504 Gateway Timeout in IIS Configuration

When running PowerShell scripts that make HTTP requests through IIS, you may encounter a 504 Gate...

Fix Windows Activation Blank Screen in Safe Mode

If you see a blank screen after entering Safe Mode to activate Windows, you're likely stuck in an...

Fix npm command not found without sudo

You type npm install and get npm: command not found. This usually means...

Fix CMD Service Unavailable Due to Group Policy

Situation

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