using (var searcher = new ManagementObjectSearcher("Select * from Win32_ComputerSystem"))
            {
                using (var items = searcher.Get())
                {
                    foreach (var item in items)
                    {
                        string manufacturer = item["Manufacturer"].ToString().ToLower();
                        Console.WriteLine("Manufacturer: " + manufacturer);
                        Console.WriteLine("Model: " + item["Model"].ToString());
                        if ((manufacturer == "microsoft corporation" && item["Model"].ToString().ToUpperInvariant().Contains("VIRTUAL"))
                            || manufacturer.Contains("vmware")
                            || item["Model"].ToString() == "VirtualBox")
                        {
                            Console.WriteLine("Manufacturer: " + manufacturer);
                            Console.WriteLine("Model: " + item["Model"].ToString());
                        }
                    }
                }
            }
            Console.Read();