$PathIntune = "$Env:Programfiles\itego\intune"
Start-Transcript -Path "$PathIntune\Log\FortigateVPN-uninstall.log" -Force

# array of uninstall args
$uninstallArgs = "/uninstall"," ","/quiet", "/norestart"
$dotnetVersions = Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -eq "FortiClient VPN" }

foreach ($version in $dotnetVersions) {
    # update array index 1 with version id
    $uninstallArgs[1] = '"' + $version.IdentifyingNumber + '"'
    Write-Host "Uninstalling $($version.Name) ($($version.Version))... $("$uninstallArgs")"
    Start-Process -FilePath "msiexec.exe" -ArgumentList "$uninstallArgs" -Wait
}
0 

Stop-Transcript