Check Windows name c#

Question

I will check my Windows os name (Windows 8 Pro) in c# but it gives an error, what's wrong?

    RegistryKey reg = Registry.LocalMachine.OpenSubKey(@"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion", true);
    string currentKey;
    currentKey = reg.GetValue("ProductName", true).ToString();

    textBox1.Text = currentKey;

Answer 1

You can use Environment.OSVersion for this.

Edit: Getting the OS name is answered here: Stackoverflow OS Friendly name