C#中判断某软件是否已安装

private void button1_Click(object sender, EventArgs e)
{
    if (checkAdobeReader() == true)
    {
        MessageBox.Show("有安裝 Adobe Reader ");
    }
    else
    {
        MessageBox.Show("沒有安裝 Adobe Reader ");
    }
}
/// <summary>
/// 確認是否有安裝 Adobe Reader
/// </summary>
/// <returns>true: 有安裝, false:沒有安裝</returns>
private bool checkAdobeReader()
{
    Microsoft.Win32.RegistryKey uninstallNode = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionUninstall");
    foreach (string subKeyName in uninstallNode.GetSubKeyNames())
    {
        Microsoft.Win32.RegistryKey subKey = uninstallNode.OpenSubKey(subKeyName);
        object displayName = subKey.GetValue("DisplayName");
        if (displayName != null)
        {
            if (displayName.ToString().Contains("Adobe Reader"))
            {
                return true;
                // MessageBox.Show(displayName.ToString());
            }
        }
    }
    return false;
}

补充：软件开发 , C# ,