I have a windows 10 laptop I haven't upgraded to 11. Every once in a while I turn it on and its not at my desktop but at a "lets upgrade to windows 11!" screen

I have a windows 10 laptop I haven't upgraded to 11. Every once in a while I turn it on and its not at my desktop but at a "lets upgrade to windows 11!" screen and it requires several "no, lets not" buttons before you can tell it not go away but "go away for now". Quite irritating.