I'm new to chess-what should be done here to win the game? [FEN &quot;8/8/8/8/3k1KB1/8/8/8 w - - 0 1&quot;]

I am new to chess and have no clue as to how to win this game. Which moves can be done with what is on the board in order to win? Could anyone explain?
This position is a draw, the game is over. It is not possible for either side to checkmate the other from this position, not even if the side with the bare king would try to help.
The same is true for king and knight vs king. A single knight or bishop without any pawns or other pieces is not enough to win the game.
With king and two knights vs king it is in theory possible to checkmate the other side, but it can't be forced. It's very easy to prevent the checkmate as the defending side. So that is essentially a draw too.
Two bishops, or a bishop and a knight, can force checkmate. It's not easy (especially bishop and knight, it has happened that a grandmaster fails to do it), but it can be done.
It's a better idea to always keep a pawn or two on the board so you can promote one.