Hide program from task manger

Hello everybody I am still working on my personal program and now I need more help. I made it so you can not exit any way except task manger. I know there is a way but I don't know how to make my program hidden or removed from task manager.

QUESTION: How do I remove my program from task manger.

I AM NOT WRITING A VIRUS! I AM MAKING A PASSWORD PROGRAM THAT YOU HAVE TO GO THROUGH TO USE THE COMPUTER.

Thank you for your help in advance.
I'M ACTING ALL DEFENSIVE BECAUSE I'M LYING!! I DON'T WANT TO SEARCH GOOGLE BECAUSE THE FBI WILL FIND ME!
What???
Can anyone help?
I still need help!
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