I might be building a rig for someone, if I bought and installed a cheaper version Windows (i.e. windows 7) on it, could I then upgrade it to Windows 10 at the moment whilst Windows are offering the free upgrade? Is this possible.
Looking at retailers here in the USA I'm seeing Win7, Win8, & Win10 Home are the same price $99usd. Same goes for the three Pro versions $139usd. Might as well just purchase Win10, unless you can find a sale on another version.