@longshanks73 :- Hallo.....and to the "kennels".
You've made a sound choice. Puppy is a very good option, indeed. With Puppy, you don't just have to run a 'Live' version from a USB stick, you can in fact set-up a complete, permanent install on one.....Puppy was always designed to work this way, right from the word 'Go', 20 years ago.
(You'll hear terms like 'frugal' mentioned quite a lot. Don't go thinking that a 'frugal' Puppy sounds like a 'poor-man's', stripped-back install, because it's not; a 'frugal' Puppy is very much the real thing. 'Frugal', in this instance, merely describes the way that Puppy is careful with drive-space, loading the entire system into RAM from highly-compressed, immutable, "read-only" files that are designed to occupy the minimum amount of space.)
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Now; I'm going to let our "experts" guide you through this. I haven't run Windows since before UEFI was even a "thing", so.....that gives you some idea just how long it's been! You're going to need advice on dual-booting with an EFI machine using Windows, and some of our Puppy users do this all the time. It's pointless my giving you out-of-date advice.
Before you go any further, I would advise having a good read through the "General Information" section at the top of the front page. We set this up last year specifically to give noobs/beginners a starting-point from which to build.
As for which Puppy to run, well.......sounds to me like your hardware should be capable of running ANY Puppy you care to select. There's quite a few recent releases to choose from; each has its adherents & proponents, so once again I will let others advise. Personally, unlike most geeks - I'm a bit of an oddball in this respect - I don't insist on always running the very newest, most up-to-date version. For a Windows user, you will probably find that very hard to understand..!
Hang in there. Help will be on its way, but.....DO be patient. It's the time-zone thing; not everybody who's best qualified to help will be logged-on at the same time. Some will more than likely be just getting-up for the day when you're turning in.....
We'll get you sorted, one way or another.
Mike.