As all of us have already known, joomla (in term of website backup)was built and performed on 2 basic components that are mutually related namely; (1) Database, and (2) Joomla CMS (Joomla Files and Folders). In the event of web files getting corrupted, virus attack, problem during installation of Joomla extension, being hacked or other kind of malicious attacks, manual backup and restoration of these two component could probably your remaining last hope. This Joomla support publication will show you how to do it manually yourself.