I know exactly what you mean for I cannot stand things like this either and I can only think to go back to an earlier time when it was not there, for I have no idea if it will stay or go. But it is still there on my husband's computer.
I was happy with windows 7 as well, but could not stand the icon there and so, asked around and did some research and weighed up the pros and cons and took the plunge and HATED it lol sooo different from windows 7, but saw that I could revert back to windows 7 and so did, but things were going wrong and so, I decided that really, I was not giving windows 10 a fair chance and so, downloaded it again and actually after taking a bit of time to get used to it, found I LOVED it. Then, I had to get a new laptop and that was windows 8 with the option of windows 10 and so, went through the process again and then, something happened, which caused my NEW laptop needed to be looked at and the guy advised me to not download windows 10. So I tried to get used to windows 8 but HATE windows 8 and no matter how I tried to get used to it, could not get on with it; not having the start button was just nasty. Found that if I had the key to my computer, I could download windows 7 but it seemed so complicated and saw that I still had the icon for windows 10 and so, against advice, downloaded it and that is what I am using now and love it!
So, if you can find a way to get rid of the icon, I would try that, otherwise, like me, you need to take the plunge and download windows 10 and actually, I really like it. Very easy to find things and funnily enough, when I tried to put my bluetooth loud speak on my laptop with windows 7, it refused to play and yet, happened straight away with windows 10. Windows 10 is a combination of windows 7 and 8.