禁用系统功能
1. 禁用任务管理器
//禁用
var subKey = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Policies\System", RegistryKeyPermissionCheck.ReadWriteSubTree);
subKey.SetValue("DisableTaskMgr", "1");
//启用
RegistryKey subKey = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Policies\System");
subKey.DeleteValue("DisableTaskMgr");
2. 禁用注册表（测试无效）
//禁用
var subKey = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Policies\System", RegistryKeyPermissionCheck.ReadWriteSubTree);
subKey.SetValue("DisableRegistryTools", "1");
//启用
RegistryKey subKey = Registry.CurrentUser.CreateSubKey("Software\Microsoft\Windows\CurrentVersion\Policies\System");
subKey.DeleteValue("DisableRegistryTools");
3. 修改桌面管理器(explorer.exe)为自己的程序
RegistryKey subKey = Registry.LocalMachine.CreateSubKey(@"SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon");
//这个值设置为自己的程序
subKey.SetValue("Shell", @"D:Test.exe");
//恢复
RegistryKey subKey = Registry.LocalMachine.CreateSubKey(@"SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon");
subKey.SetValue("Shell", "explorer.exe");