PowerShell

PowerShell is a command-line shell and scripting language designed for system administration. It uses a cmdlet (pronounced “command-let”) architecture where commands follow a Verb-Noun naming convention.

Version check

Get-Host | Select-Object Version

Update help content

Downloads and installs the latest help files for all installed modules.

Update-Help -UICulture en-US

Update-Help may fail on some systems even when connectivity is available — this is a known issue with the help update infrastructure.

Update PowerShell itself

iex "& { $(irm https://aka.ms/install-powershell.ps1) } -UseMSI"

Downloads and runs the latest PowerShell MSI installer.

Windows Update via PowerShell

Install the PSWindowsUpdate module to manage Windows updates from the console with live download progress:

Install-Module PSWindowsUpdate
Get-WindowsUpdate
Install-WindowsUpdate