Installation and Execution Policy

Install PowerShell 7

winget install --id Microsoft.PowerShell --exact

On Windows, winget or the MSI from GitHub installs pwsh; on Linux/macOS use the package tarballs or Homebrew. pwsh launches modern PowerShell anywhere.

Execution Policy

Windows restricts running scripts:

Get-ExecutionPolicy
Set-ExecutionPolicy -Scope CurrentUser RemoteSigned

RemoteSigned allows local scripts and requires downloaded ones to carry a trusted signature. Keep it scoped to CurrentUser rather than Machine.

Help System

Update-help downloads the full help; Get-Command finds cmdlets; Get-Help with -Examples shows samples:

Update-Help
Get-Command *process*
Get-Help Get-Process -Examples

Verify the Install

$PSVersionTable.PSVersion

Displays the engine version and confirms .NET runtime readiness.

Key Points

• winget MSI and GitHub cover every platform.
• RemoteSigned is the pragmatic default policy.
• Get-Help -Examples teaches any cmdlet.
• $PSVersionTable proves the engine works.