Again manu many thanks because of your reply.
what about Windows 8.1? if it is possible to run it over Bootcamp on my MacBook Pro or not? (as I saw, in the list "Mac Models you can use with windows 8.1" there is no the name of my MacBook Pro!)
Use Windows 8.1 on your Mac with Boot Camp - Apple Support
and the list below, mentioned that my MacBook Pro is compatible with Windows 10:
"Mac Computers that support windows 10"
Use Windows 10 on your Mac with Boot Camp - Apple Support
If Possible, I prefer to install Windows 8.1 using Bootcamp rather than windows 10, since many of my windows Applications are better compatible with Win7 and Win8.1 and unfortunately they don't run good on virtual machines as well.
So please help me if I can use windows 8.1 using Bootcamp on my MacBook Pro 2017?
Thanks a lot