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I see you've met OP's son.Both will work fine. Software basically interchangeable and no longer operating system specific.
You'll want minimum 8 GB ram if all they're doing is internet and microsoft word, 16 is good for photoshop and similar programs. 32 GB is overkill unless they're doing video/CAD
500 GB Hard drive is most likely enough unless they download their porn. Then they'll need 3 Terabytes.