The Brazil midfielder has been linked with a move to Flamengo this summer.
But after being cleared of breaking betting rules, Potter says Paqueta is happy in London and committed to the Hammers.
"You never know for sure because anything can happen in the window with anybody," said Potter.
"But the news is incredibly positive. If it had gone the other way, there would have been a whole other line of questions.
"Lucas is happy and committed. He is an important person in dressing room and at the club and we love him. We just want to help him enjoy his football.
"You can imagine on a personal level for him, having to fight those allegations was an incredible challenge for him. It has been a really tough period in his life and career.
"It is a credit to him and his family and everyone who has supported him that he has come through."
Meanwhile, Potter says there will be no new contract offer for Michail Antonio.
The Jamaica striker has worked his way back to full fitness after a career-threatening car accident before Christmas.
Asked if Antonio will be part of West Ham's squad this coming season, Potter replied: "No."