实现效果:

知识运用:
NoDispScrSavPage键值
实现代码:
private void radioButton2_Click(object sender, EventArgs e)
{
RegistryKey rk = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Windows\CurrentVersion\Policies\System");
if (radioButton1.Checked == true)
rk.SetValue("NoDispScrSavPage", 1, RegistryValueKind.DWord);
else if (radioButton2.Checked == true)
rk.SetValue("NoDispScrSavPage", 0, RegistryValueKind.DWord);}
}
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