Kill tasks without using task manager

Now you can kill a task or a process without using task manager. you can do it in command Prompt. To see process details and their pid type "tasklist" in command prompt. it will display list of all tasks. now you can kill any process just by typing taskkill /pid with its pid. suppose you want to kill a process whose pid is 2690 then you have to write "taskkill /pid 2690" If this process id is not valid id then it will give an error message otherwise it will kill that process instantly.