You can find this in The Complete Robot, The Bicentennial Man and Other Stories and Robot Visions.
This novella was later rewritten into a full novel, The Positronic Man, so you can either read both or just one of them.
Originally, U S Robots would sell robots to customers, but later changed to simply leasing them so they could maintain total control over what happened to their robots, recall them, modify them, replace whole model lines completely, etc.. But what ever happened to those that they sold and were never traded in for an upgrade?
This is the story of one such robot.
Another super good robot story.
Next up in the robot line is Robot Visions.
