Ensure there is no disc inside the UJ240AS.

Right-click the update utility and select "Run as Administrator."

Common firmware versions for this drive include . If your drive is currently on 1.00, upgrading to 1.10 is highly recommended for Windows 10/11 compatibility. Step-by-Step Installation Guide

Note that firmware updates sometimes reset the DVD/Blu-ray region code counter. Ensure you have a region-free player software if you watch international media.