Error code 31

CM_PROB_FAILED_ADD
This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)

Cause

The device cannot load the driver.

Solution

Install another driver using device control. You'll be asked to choose which driver you want to install. Driver Fusion includes your backed up drivers, the drivers that are present in Windows, and the drivers that we have online. You can also reinstall your current driver.