Software comparisons, alternatives, and tool decision notes.

PowerShell Command Not Found but Works in CMD

You open PowerShell, type a command you know works in Command Prompt, and get an error like

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

Fix Chrome Profile Error: Extensions Not Loading

You open Chrome and notice your extensions are missing. The extensions page shows a profile error...

Fix Windows Activation Error 0xc004f074: Permission Denied

You see error 0xc004f074 when trying to activate Windows, often with a message about permission d...

Fix PowerShell DNS Query Permission Denied Errors

When running DNS queries in PowerShell, you might see a 'permission denied' error. This typically...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...