Enable-WindowsSandbox.ps1

<#
.SYNOPSIS
    Enable Windows Sandbox.
.DESCRIPTION
    This script will simply enable the Windows Sandbox for the user.
.NOTES
    Author: Peter van der Woude
    Contact: pvanderwoude@hotmail.com
    Date published: 07-01-2019
    Current version: 1.0
.LINK
    http://www.petervanderwoude.nl
.EXAMPLE
    Enable-WindowsSandbox.ps1
#>

#Set variables as input for the script
$WindowsFeature = "Containers-DisposableClientVM"

try {
    #Get the state of the Windows Feature
    $WindowsFeatureState = (Get-WindowsOptionalFeature -FeatureName $WindowsFeature -Online).State
}
catch {
    Write-Error "Failed to get the state of $WindowsFeature"
}

#Verify if the Windows Feature is enabled
if($WindowsFeatureState -eq "Enabled") {
    Write-Output "$WindowsFeature is enabled"
} 
else {
    try {
        #Enable the Windows Feature
        Enable-WindowsOptionalFeature -FeatureName $WindowsFeature -Online -NoRestart -ErrorAction Stop
        Write-Output "Successfully enabled $WindowsFeature"
    }
    catch {
        Write-Error "Failed to enable $WindowsFeature"
    }
}