2010 MacBook Pro 8 gb ram
I would Recommend installing windows 10 only and getting rid of the mac partition completely. There are tons of online tutorials on how to do it. BUT if you want to use the partition and have that be the default when you hit the option key to choose your startup disk, HOLD CONTROL before you select it that you’ll notice that upward-pointing arrow—the one that points to the selected disk—will change into a circular arrow instead, indicating that the chosen disk will not only be used to start your Mac this time, but that it will also become the default boot disk.