Recently, the WordPress team has been pushing out new releases rather quickly, making it advisable to upgrade your installation fairly regularly. The WordPress wiki includes some pretty good instructions explaining how to backup your install and how to upgrade. However, with the EZ WordPress Backup plugin, you can backup and upgrade with even more ease.
Installing the EZ WordPress Backup plugin is just as simple as installing any other plugin. Simply go to your Plugins menu and click the “Add New” link. In the search box, type in “EZ Backup” and the EZ WordPress Backup plugin will be the only result that appears. Click the Install link and then activate the plugin.