A method and apparatus to upgrade a driver of an image forming apparatus. The method includes accessing a website having a website driver program useable by the image forming apparatus, converting a class mode of the image forming apparatus from an original class mode to a predetermined class mode that is different from the original class mode, comparing a driver program stored in the image forming apparatus with the website driver program on the website, and downloading the website driver program from the website and storing the website driver program in the image forming apparatus when the website driver program is a later version than the stored driver program.