Creating disk images is the easiest way to back up and restore lost data or just to give you peace of mind.
7Tokens Manager is an awesome, free Windows software, being part of the category Security software with subcategory Security Backups and has been created by Josh Cell.
MozBackup is a simple utility for creating backups of Mozilla Firefox, Mozilla Thunderbird, SeaMonkey, Mozilla Suite and Netscape profiles.
Comodo Time Machine
Comodo Time Machine is a backup and restore application, allowing you to roll back your system to an earlier point in time.
ShadowExplorer is a nice, free Windows program, that is part of the category Security software with subcategory Security Backups and has been published by ShadowExplorer.
Backups are not the only resource you have left when you're hit by computer disasters.
If you've never performed a backup of your PC, then you're risking potential disaster if your hard drive fails or the 'On' switch simply doesn't work for some reason.
Are you worried about the security of the data you store on your PC? If so, start using Syncplicity and you'll always have a synchronized backup copy to hand.
Jihosoft ISO Maker Free
Jihosoft ISO Maker Free is an easy-to-use software to back up disks as ISO image, create ISO image from files and folders, extract contents of a ISO file and burn files and folders as data disk.
EASEUS Todo Backup
What is the most valuable part of your computer? Not the screen, or the keyboard, or the mouse.
AOMEI Backupper is a free backup software for Windows 7, 8, Vista, XP and Windows Server 2003, 2008, 2011, 2012 (all editions, both 32-bit and 64-bit).
SuperEasy Backup Pro
SuperEasy Backup Pro backups all of your personal files.