I have a computer for sell with a Z68 board in it. The board was brand new never used when I got it this year. I deal with a computer repair store. They couldn't get it to run. It was that there was a couple of bent pins and trying to get a newer CPU to run.
I'm not taking any thing away from you that you have a older board. All I'm saying is we have had a lot of people with those boards. They had problems with 7 & 8 with new video cards & UEFI. Now we have windows 10 we can throw into the problem.
But if that is the only problem with windows 10 feel lucky that is it. I do have to say is you are very lucky that with that board, sandy bridge CPU & windows 10.
.