@Kjellinux :-
I have to agree with Oscar, really I do.
I know optical drives are becoming rare beasts these days. I bought this new HP desktop just last year, but I actually have two! I chose the desktop because it came with an optical drive - it's a horrible, cheap, flimsy laptop-style drive, working in the vertical position, but it's functional, and does the job.
The second drive, I "rescued" from the old Compaq Presario desktop just after it died on me. I'd only installed it literally weeks before the box snuffed it, so it's almost brand-new.....and it's a somewhat higher-quality LiteOn 'tray-loader', which I much prefer. I bought a 3-metre USB 3.0-to-SATA adapter cable for it, and now run it at desktop height (the HP sits out of the way underneath the desk).
(Actually, they're not rare on the 'after-market' at all - everybody & his dog sells external optical drives - but they're a rarity as far as OEMs are concerned. The current obsession, with making everything as thin & light as possible, has been with us for a while now.....and I don't see it going away any time soon.)
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The point of my missive is this; USB installs of Puppy are always fraught with 'quirks' for folks installing to a stick from Windoze. It's 'old-fashioned', perhaps - and Lord knows, it dates right back to Puppy's beginnings - but I've never yet had a Puppy ISO, burnt to CD/DVD, fail to boot for me.....desktop OR laptop, BIOS or UEFI. They just 'work'.
So it's probably the best option for anyone wanting to get that very first Puppy up-and-running. Our Pup's had enough love & attention lavished on her over the years, by plenty of interested, committed, knowledgeable & 'expert' Puppians, that she possesses every tool imaginable for building more Puppy installs, on whatever medium you care to name.
I would thoroughly recommend it, for any 'noob' or first-timer to the Puppy cosmos.
(For an absolutely 'idiot-proof' method of burning a Puppy ISO to an optical disc, I still say you have to go a long way to beat this wee Windows utility; Burn CDCC - from Terabyte Unlimited. Second item down.....it's a direct download. D/l it, unzip it, and run it from anywhere. You can't go wrong with it, because it's designed to do one thing.....and one thing ONLY; to burn an ISO file to an optical disc. That's all you can use it for.....it won't do anything else..!! )
Mike.