What is the best version of LInux and where can I download it?

Also, how does dual booting work and how do I get it? Is it like having 2 different computers or can I access what I have on Linux on my current OS Vista and vice versa?What is the best version of LInux and where can I download it?
If you are new to linux you would do best to start with ubuntu. After you get the hang of that you can switch to another linux.

If you have a dual boot computer when you turn you computer on you will get the option to select windows or linux to use as your OS.

Here are some useful links.

Good luck

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suzuki samurai