Which one you pick depends on what kind of experience you want. These are known as “distributions” and each offers a different experience. The first thing you need to know is that there are different versions of Linux around.
Insert your boot device of choice, select Use a device, and select the device you want to boot from.Parallels Desktop for Mac review How to install Linux on a Mac: Which version of Linux to pick
You can boot from removable media by accessing the boot options menu in the same way - hold Shift while you click the Restart option. You’ll be taken to the UEFI Settings screen, where you can choose to disable Secure Boot or add your own key.
(You may not see the UEFI Settings option on a few Windows 8 PCs, even if they come with UEFI - consult your manufacturer’s documentation for information on getting to its UEFI settings screen in this case.) Select the Troubleshoot option, select Advanced options, and then select UEFI Settings. Your computer will restart into the advanced boot options screen. To do this, open the Settings charm - press Windows Key + I to open it - click the Power button, then press and hold the Shift key as you click Restart. To access this screen, you’ll need to access the boot options menu in Windows 8. You can control Secure Boot from your UEFI Firmware Settings screen. See the last section for instructions on booting from a removable device. You should be able to install current versions of Ubuntu - either the LTS release or the latest release - without any trouble on most new PCs. If you need to boot an older Linux distribution that doesn’t provide any information about this, you’ll just need to disable Secure Boot. You should check to see which process your Linux distribution of choice recommends. This doesn’t seem to be a common at the moment.
You have several options for installing Linux on a PC with Secure Boot: Organizations could use their own keys to ensure only approved Linux operating systems could boot, for example. You can choose to disable it or even add your own signing key. On an Intel x86 PC (not ARM PCs), you have control over Secure Boot. Secure Boot blocks this - the computer will only boot trusted software, so malicious boot loaders won’t be able to infect the system.