I installed the driver from Acer’s website, it is a few years older than the driver on my computer, but I went ahead anyway. No difference. So I let Windows upgrade the driver to the one I had replaced. No difference, BUT a miracle could have happened and the computer MIGHT have recovered, it didn’t. I then re-visited the Intel website and allowed it to check my system, again, and download the latest driver, again, and then install the latest driver etc. Once again the driver couldn’t be installed because the Acer didn’t like it. Intel liked it but wouldn’t install it, but told me how to install it myself. Intel also warned me that I did this on my own head as installing the latest driver could cause the Acer to go belly up (there is another way of expressing that, but I won’t). So, SU 2016 runs fine, if a little slow depending on what I am doing, I will keep using it until I raid the extremely strong piggy bank with my dwindling reserves in it and buy a new sooper dooper computer and then have to re-install all the paid for and downloaded for free software. No matter what computer I buy, unless it’s a Mac, Windows will want to update it’s software and I could be faced with the same problem. I am very happy that your problems were easier to fix than mine!
( I wonder if I could take the hard drive from the Acer and have a better computer built around it?)