I have an asus n550jv with i7 4700hq. That means i have a nvdia 750m and 4600 hd graphics. I accidentally uninstalled the 4600 hd graphics so it defaulted to the 750m. How do i reinstall it? I have windows 8.1 64bit. I tried this download: https://downloadcenter.intel.com/Detail_Desc.aspx?ProductID=3720&DwnldID=23714&lang=eng&iid=dc_rss but it says computer doesn't meet minimum requirements. How do i re install the graphics?