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I have no idea what I'm doing, help!
(sh.itjust.works)
This is a community that is only for nerds jk. everyone who doesn't scare when seeing UNIX terminal welcome! rules:
If you're really not sure and don't want to break anything, I'd suggest installing some different OSes in virtual machines and try on that first. That might be a learning curve by itself, but you won't take your computer as hostage for your beginner's errors.
There are more user friendly OSes than others. I'd go with a Ubuntu or *buntu flavor just for the fact that there's a lot of beginner friendly websites, tutorials and forums.
That's two votes for ubuntu. I like the idea of a virtual machine protecting me from myself. I've got desktop and a laptop, but need them both active. I've also got an old desktop in a closet somewhere, wonder if the hardware would still be functional enough to learn on. CPU is probably a 7th gen I5, to give you an idea of the datedness.
Make that 3 votes for Ubuntu. It's one of the most user-friendly distros (and a lot of other user friendly ones are just Ubuntu with some tweaks).
It's really hard to go wrong with it.
If you're worried about old hardware, use Xubuntu. It's just Ubuntu with a lighter desktop environment, so it works better on older machines.
Just checked it out, It's an I5 6500, a little older than I thought, but ubuntu recommended specs are pretty low: CPU: 1 gigahertz or better RAM: 1 gigabyte or more Disk: a minimum of 2.5 gigabytes
no uefi so I'm good to go. probably
My daily PC is an i5-3570k and it's very quick in Kubuntu (that's Ubuntu with KDE as a graphical environment). I think I have "only" 8 GB RAM and it's quite enough for my use.