Acpi\ven_elan&dev_0749 Jun 2026

A yellow warning triangle appearing under "Human Interface Devices".

ACPI\VEN_ELAN&DEV_0749 – Driver Fix, Missing Device, or Yellow Exclamation Mark? (Solved)

Total unresponsiveness of the cursor, even in the BIOS/UEFI environment. Solutions to Fix Driver Failures acpi\ven_elan&dev_0749

If the automatic installer fails or the manufacturer website lists the driver but Windows refuses to recognize it, you may need to force the installation.

To understand what this device is, we need to break down the hardware ID: A yellow warning triangle appearing under "Human Interface

often communicates through the . If this controller driver is missing or outdated, the touchpad will fail to initialize.

Without this driver, your touchpad may still work with basic generic Windows drivers, but you will lose functionality for: Solutions to Fix Driver Failures If the automatic

The ACPI\VEN_ELAN&DEV_0749 error is rarely a sign of broken hardware. It is simply a communication gap between your fresh Windows installation and the Elan controller inside your laptop. By installing the correct from your manufacturer's website, you will not only clear the error from Device Manager but restore full functionality to your touchpad and gesture controls.

While this ID can appear in various machines, it is most frequently reported in:

: This device is probably a pointing device used for cursor control on a laptop. ELAN touchpads are common in many laptops and are known for their accuracy and reliability.