need to close all running applications without using windows logoff from c# application

Question

i need to close all open applications in windows while my application closes how to i do that using c#

i am implementing login/logoff functionality in my application itself instead of windows login/logoff so that i need to close all applications while logoff clicked in my application and pass control to my application after that

Answer 1

using System.Diagnostics;

Process [] localAll = Process.GetProcesses();
foreach(Process p in localAll)
{
    p.Kill();
}

But you'd probably have to put in some kind of filter to avoid killing certain processes since otherwise the machine might get a bit upset.

Answer 2

For whatever reason you want to do this. This is a bit funnier way to do it!

using System.Diagnostics;

Parallel.ForEach(Process.GetProcesses(), process => process.Kill());

Don't run this with an elevated process though; will probably caus your OS to crash.