The 27-year-old left the franchise this summer after just one year in Los Angeles, and has revealed that he would like to move on.
"It's another game. Listen, it's over with man. I'm already out of there," he said, according to Pro Basketball Talk.
"There's no need to talk about what the Lakers could have did, I made my decision and I'm living with it. I'm happy where I'm at, I'm in a great place... I think everybody should move forward. It's over with. This is my life."
Howard will face his former team for the first time since moving to Houston at the Toyota Center on Thursday night.