On the computer. Do not give supply to printer. Now connect the printer USB cable to USB port of the computer. Now give power supply to printer. Then computer will detect the printer and on the screen it will display found new hardware wizard. You will find three options on the screen. Choose last option no,not this time,and click next. Then put the printer cd in drive and select install from a list or specific location(advanced) option and click next. On the screen select search removable media(floppy,cd)then click next. Then it will install the printer driver. Now you are ready to use the printer.