Registry

Backing up information is vital to save your data. An essential part of any windows system that should be backed up are the registries.
(Note: This article pertains to windows users only. Your registry is very delicate do not mess with anything unless you know what you are doing. If you are a novice computer user take the upmost caution I can not be responsible for any damage.)

Check out the how to back up your regestry video here