Bootstrapper window that appears after restarting the computer

Ultimately, the reason for this was adding the RunOnce registry for the bootstrapper. It is written on the Internet that, according to the developers, this is a confirmation of the success of the installation. But in my case, it is unnecessary for me, because I do the post-configuration test myself. To prevent this, I hooked up to the OnRegisterComplete event and remove all registers containing the name of my installer.

However, this requires running the bootstrapper with administrative privileges.

    private void OnRegisterComplete(object sender, RegisterCompleteEventArgs e)
    {
        try
        {
            string registryKey = @"SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce";
            RegistryKey key32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
            RegistryKey key = key32.OpenSubKey(registryKey, true);
            if (key != null)
            {
                var names = key.GetValueNames();
                for (int i = 0; i < names.Length; i++)
                {
                    var value = key.GetValue(names[i]);
                    if (value.ToString().Contains("NameInstaller.exe"))
                        key.DeleteValue(names[i]);
                }
                key.Close();
            }
        }
        catch (Exception ex)
        {
        }
    }