Is there a way to turn ON UAC programmatically with C#?

Is there a way to turn ON UAC programmatically with C#? I know, everyone seems to want to kn开发者_开发问答ow how to turn it off. I want to be able to turn it on and restart the system.

Thanks

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Registry key seems to be at HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA

Easiest way that I know how to restart is "shutdown -r -t 01" You should be able to ShellExec it.