If the Intel based Driver Checker tool is not able to update your PC Drivers then you should check out Device Doctor which is a free application which once installed on your computer will completely scan your PC. The Utility is going to scan all your computer’s hardware and give you a list of all the updates available and does support ‘Unidentified devices’ which the other companies don’t support.
This application is currently supports onlyWindows Based computers and needs very less space to install. On the initial launch of this software it will go for a complete scan initially where in all your installed hardware is scanned and then the Device Doctor will check if there are any updated available for the Drivers already installed on your PC. Once the scan is completed you will be given with a complete Scan Report which is a result of the scan with the device names and a download button for each. You need to download the updates one by one for which you feel the update would be useful though its recommended to go for an update for all the old drivers to keep your PC perfectly running.
Here are a few Screen shots which can give you a idea on how the program looks and how it works –