Thanks Elixer, your answer "You can" answers my poorly worded post.
I was trying to ask if it was able to install an x64 on this/my computer and then whether I can update a Win7x32 to a Win10 x64. I am going to assume the two don't mix.
Thanks anyway, I would to prefer to reformat as it a new install of Win7 that I haven't really used yet and am eager to install and try the Win10.