Mid level · Windows track
Environment Variables
If a tool “is not recognized,” PATH is often the missing street.
Environment variables are named values Windows and apps share. PATH is the famous one: folders searched when you type a command.
$env:PATH -split ';'
[Environment]::GetEnvironmentVariable('PATH', 'User')
Prefer installing tools with winget or installers that update PATH for you. Edit user PATH carefully; machine PATH needs elevation.
General Windows literacy from Phyllux Tech Field House. Not remote support.
Do not run scripts you do not understand. Never disable Defender for speed.