1.) Pick a distribution
2.) Make sure you tested that distribution, if applicable, via a live CD or USB stick. Test all your hardware before installing!
3.) Make sure you know where you want to place your master boot record file for Linux, either the default set up, or and advanced setup.
4.) Back up all of your data!
5.) If you don’t want to use the default distribution’s partitioner, partition out your hard drives before hand.
6.) If you do want to use the defualt distribution’s partitioner, make sure you have an idea how you want to set up your hard drives for when the time comes.
7.) Back up all of your data!
8.) Use your CD or USB stick to begin the installation!