Windows is blocking my external LG DVD Writer

Todd Duncan 0 Reputation points
2026-09-09T19:26:03.8366667+00:00

Windows 11 is blocking the LG External DVD writer because of the driver

Windows for home | Windows 11 | Devices and drivers
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AI answer

2026-09-09T19:26:23.06+00:00

If Windows 11 is blocking the external LG DVD writer driver, the supported fixes are:

  1. Get an updated driver first
    • Check Windows Update.
    • Check the LG or PC manufacturer support site for a newer compatible driver.
    • If Device Manager shows Code 48, that means Windows blocked the driver because it is known to have problems with Windows. The recommended resolution is to obtain a new driver from the hardware vendor.
  2. If the drive appears in Device Manager with a warning icon, reinstall the device driver
    • Press the Windows key, type Device Manager, and press Enter.
    • Expand DVD/CD-ROM drives.
    • Right-click the LG external DVD writer and select Uninstall device.
    • Confirm Uninstall.
    • Restart the PC.
    • After restart, Windows should automatically reinstall the driver.
  3. If Windows shows “A driver can’t load on this device”
    • This can be caused by Memory Integrity in Windows Security blocking the driver.
    • First try an updated compatible driver.
    • If no updated driver is available, Memory Integrity can be turned off:
      • Open Windows Security.
      • Go to Device Security.
      • Under Core isolation, select Core isolation details.
      • Turn Memory Integrity Off.
      • Restart the PC.
    • Warning: Turning off Memory Integrity reduces protection. On a Secured-core PC, it takes the device out of a Secured-core state.
  4. If the drive is not detected at all
    • Open Device Manager and check whether it appears under DVD/CD-ROM drives.
    • If it does not appear, try a different USB port or USB cable. A similar external DVD detection case was resolved by the cable being used.
  5. If the issue started after software changes and the drive is listed as a CD/DVD device but still fails
    • Windows also documents CD/DVD detection issues caused by corrupted registry entries.
    • Warning: Registry editing is risky and can cause serious problems if done incorrectly.
    • In that case, the documented method is to remove the UpperFilters and LowerFilters entries under:
      • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
    • Then restart the PC.
    • Some CD/DVD recording apps may stop working until they are reinstalled.

The safest order is: update driver -> reinstall device in Device Manager -> try another USB port/cable -> only then consider disabling Memory Integrity or editing the registry.

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  1. Todd Duncan 0 Reputation points
    2026-09-09T21:53:10.7133333+00:00

    The thing that finally fixed the problem was editing the Registry as described in solution #5 above. Now Windows allows the DVD writer to function again.

    Thank you.

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