First Of All, This Is Legitimate Information, Top Class Government Type Documents.
The First Thing You Have To Do Is Find A Gun.
Then Find Bullets.
Then Shoot Yourself In The Head.
Get a rope
There! One Less Future Zombie!
(Semi Effective-Expect Pain)
Get all the guns in the world and kill everything except you.
(Probably most effective.)
Get a gun some food, water,tooth brush,running shoes,sour patch kids and a random person then push them so the zombies go after him/her and While they're eating them run or shoot the zombies as theyre eating him/her.
Hide in a secret lair with a bunch of food and drinks plus a duplicating machine so you can duplicate your weapons food and drinks.