Lenovo S540 “double boots?” shutsdown when turning it on then on once more on its own

I’ve not too long ago bought a lenovo computer fashion S540 Ideapad, and it has that bizarre factor after I flip it at the keyboard remove darkness from and lenovo emblem displays up after which it shutdowns then activates once more on its own. however the second one time it boots most often because it will have to
Is there any technique to repair that?

thank you prematurely