# Kill 3CX processes first
Get-process | Where-Object {$\_.name -Like "*3CX*"} | stop-process

# attempt #1 - via EXE uninstall method
$3cxapps = Get-WMIObject - Class Win32\_product | where {$\_.name -
like "*3CX*"} foreach ($app in $3cxapps) { $app.Uninstall() }

# attempt #2 - via MSIEXEC
$appName = "3CX Desktop App"
$appInstalled = Get-WmiObject -Class Win32_Product | Where-Object {
$_.Name -eq $appName }

if ($appInstalled) {
    # Uninstall 3CX Desktop App
    $uninstallString = $appInstalled.UninstallString
    Start-Process msiexec.exe -ArgumentList "/x `"$uninstallString`"
/qn" -Wait
    Write-Host "$appName has been uninstalled"
} else {
    Write-Host "$appName is not installed"
}

# Check if 3CXPhone for Windows is installed
$appName = "3CXPhone for Windows"
$appInstalled = Get-WmiObject -Class Win32_Product | Where-Object {
$_.Name -eq $appName }

if ($appInstalled) {
    # Uninstall 3CXPhone for Windows
  $uninstallString = $appInstalled.UninstallString
  Start-Process msiexec.exe -ArgumentList "/x `"$uninstallString`"
/qn" -Wait
  Write-Host "$appName has been uninstalled"
} else {
    Write-Host "$appName is not installed"
}