@OP
I have downloaded several Linux OS and installed them on various computers. I started with a Windows computer. Downloaded a Linux OS. Made a bootable Flash drive or DVD. And started the computer on the Flash or DVD.
Then, I installed the OS off the running Flash or DVD, totally wiping Windows off. I could have partitioned the drive to have both Windows and Linux on it. Most Linux OS have a method to install off the Flash or DVD.
Puppy Linux you just copy the Linux files off the Flash, and paste them into a blank hard drive, and you have your Puppy Linux on the computer. Simple as that. (Gotta format and partition the HD first. Most other OS's do the formatting and partitioning automatically when you are installing, or they walk you through the process during the install.)
It was easy. But I haven't tried all the Linux OS's out there. In past years it was more difficult. Far back, you would have had to literally install Linux piece by piece. Nowadays it's far easier... just like I said, above.
