Don't connect the printer to the USB port, even if the printer is turned off, until prompted during the install. If you do the install will likely fail. Don't ask me why, but it has happened to me in the past. Also it shouldn't matter what USB port you use, just use the same one any time you use the printer. If you don't you'll likely get a new hardware found pop up and end up with HP Printer (your model here) NO.2 in devices and printers. I hate it when windows does that.