: If the drive still fails to read specific discs after an update, it may be a physical lens issue rather than a software one. Using a specialized lens cleaner can often resolve stuttering or "No Disc" errors. Drive Specifications for Verification

If the drive disappears from File Explorer, go to Device Manager, uninstall the "MATSHITA BDMLT UJ240AS," and restart. Windows will automatically reinstall the driver.

: Once the utility says "Complete," restart your computer to finalize the update. Alternative: Troubleshooting Without Firmware