Step One: Access the Facebook home page and log in using the email address and password you originally registered with.
Step Two: Head to the "My Account" page using the link from the menu.
Step Three: Follow the "Click Here" link under the Deactivate Account section. You will be taken to a short form to fill out before you close your account.
Step Four: Tell Facebook why you're leaving. Select the radio button next to the reason for deactivating your account. There is also space to write other comments.
Step Five: Opt in or out of Facebook emails. Even if you account is deactivated, your friends can still invite you to events or ask you to join groups. If you don't want any email from Facebook at all, check the appropriate box.
Step Six: Click the "Deactivate" button. You will be taken to a page confirming your account deactivation.