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- How do I install Ubuntu? 4 answers
I can't find an Ubuntu installer to format the PC and install it.
You can download Ubuntu from here:
My personal choice would be 12.04 as its supported for longer (April 2017) but if you want the latest features download 12.10. The only other choice is 32-bit or 64-bit. It's up to you which you choose to download.
The 32-bit version contains i386 in the name and 64-bit version contains amd64 do not be put off by this both will work with either amd or intel processors.
If you have a new PC that came with Windows 8 installed take a look at Installing Ubuntu on a Pre-Installed UEFI Supported Windows 8 system otherwise you have a choice between a dual boot or Wubi install both are explained in this question How can I install Ubuntu without removing Windows?
Caution if you have a Samsung Laptop that came with Windows 8 pre-installed read this first otherwise you are good to go.
Intel uses the same instructions as AMD. You can find in: http://www.ubuntu.com/download/desktop