Let me help you with this.
Please note the .INF file is a generic driver for OEM systems. This driver has the standard drivers for Intel® computers but it may not work properly on other branded systems. This is because we as Intel, provide the hardware to Computer Manufacture and they will design and create their own computers setting limitation according to their specifications.
From our side we can provide the .INF file but since it is not working for you correctly, my best recommendation for you is to contact the Computer Manufacture and get their latest drivers that have been designed specifically for your unit.