Hi I got the OKI B4200 to work in Windows 7 64 bit. After you plug in the printers USB cable it will show up as a USB device but will not know it is a printer yet. You have to click on Update
Driver then search for a
driver. You have to let Windows update the list of printers supported there is a button for this. When it refreshes the list by going over the internet B4200 will show up as a printer. Just select it and it will install the
drivers automatically