Hello there. A couple days ago i've been upgraded OS to sierra. Tell you next story with hope one of your answer will be helpful because for me its very important question right now. Before upgrade i used El Capitan and Windows 7 bootcamp. Now, after upgrade, on Bootcamp menu i see two very magical options: The most interesting thing is my MacBook Pro (15-inch, Mid 2010) and there are no options to instal Windows 7 or 8.1, just 10 or later? Apple says that MB older than 2012 does not support Windows 10. Use Windows 10 on your Mac with Boot Camp - Apple Support My MBP is even older. So, why i can't chose instal Windows which my notebook supports? I use Windows for my own purposes to do some work and its very important for me how long it takes to instal Windows properly by using BootCamp. The second thing happened after upgrade OS my MATSHITA DVD-R UJ-898 stop burning CD's and DVD's. Seems like there some drivers problems (The burn failed because of medium write error). I tried to burn most expensive DVD's i found in my city and its still doest work. My question is very simple. Is there any way to instal Windows 10 or Windows 8 on Sierra by using Bootcamp if i have no option to choose to do it through the USB Flash. MacBook Pro (15-inch, Mid 2010) Thank you very much.