How to remove welcome screen

I just installed ubuntu mate on my pc, and when I started the pc a welcome window appears, but it goes blank with nothing and I know that in order to not appear you have to mark an option so that it does not reload at startup. How can I remove it so that it does not appear anymore?

To disable : control center / startup applications / uncheck the welcome entry

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Thank you, disabled and I no longer see that annoying window.