Public/Install-PowerShellISE.ps1
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function Install-PowerShellISE { <# .SYNOPSIS Install the Windows PowerShell ISE .DESCRIPTION This script installs Windows PowerShell ISE if it was not installed or previously removed. It includes a step that temporarily resets the Windows Automatic Update server source in the registry, which may resolve errors that some systems experience while trying to add Windows Capabilities. .EXAMPLE Install-PowerShellISE .NOTES Author: Sam Erde Version: 1.0.0 Modified: 2025-01-07 To Do: Add parameter to make the Windows Update registry change optional. #> [CmdletBinding(HelpUri = 'https://day3bits.com/PSPreworkout/Install-PowerShellISE')] param () # Check if running as admin if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) { Write-Error 'This script must be run as an administrator.' return } $OSCaption = (Get-CimInstance -ClassName Win32_OperatingSystem).Caption # Quick check to see if running on Windows. if (-not $OSCaption -match 'Windows') { Write-Error 'This script is only for Windows OS.' return } # Check if running a Windows client or Windows Server OS if ($OSCaption -match 'Windows Server') { # Windows Server OS if ((Get-WindowsFeature -Name PowerShell-ISE -ErrorAction SilentlyContinue).Installed) { Write-Output 'The Windows PowerShell ISE is already installed on this Windows Server.' } else { Import-Module ServerManager Add-WindowsFeature PowerShell-ISE } } else { # Windows client OS if ((Get-WindowsCapability -Name 'Microsoft.Windows.PowerShell.ISE~~~~0.0.1.0' -Online).State -eq 'Installed') { Write-Output 'The Windows PowerShell ISE is already installed.' } else { # Resetting the Windows Update source sometimes resolves errors when trying to add Windows capabilities $CurrentWUServer = Get-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU' -Name 'UseWUServer' | Select-Object -ExpandProperty UseWUServer Set-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU' -Name 'UseWUServer' -Value 0 Restart-Service wuauserv try { Get-WindowsCapability -Name Microsoft.Windows.PowerShell.ISE~~~~0.0.1.0 -Online | Add-WindowsCapability -Online -Verbose } catch { Write-Error "There was a problem adding the Windows PowerShell ISE: $error" } Set-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU' -Name 'UseWUServer' -Value $CurrentWUServer Restart-Service wuauserv } } # end OS type check } # end function Install-PowerShellISE |