OKI Drivers Update Utility - Version 8.9 OKI Drivers Update Utility updates your system drivers for OKI devices automatically with just several clicks.It will scan your system first then download and install OKI official drivers to let your OKI device work properly.The OKI Driver Update Utility keeps your system up-to-date. It detects which driver updates are relevant to your computer, and then helps you install them quickly and easily.