Sorry to hear you are having problems with your system.
Based on your description, I recommend you updating the Bios and the Management Engine but the software is provided by the computer manufacture. This is because we as Intel® provide the hardware to the computer manufactures and they will design and create drivers specifically for their units.
My best recommendation is to contact the computer manufacture and get all drivers from them. From our side, we can provide the graphics driver only. Just in case, it can be downloaded at the following link: