Redo Backup and Recovery is a free and easy-use,most complete disaster recovery solution available.”It allows bare-metal restore, which means that even if your hard drive melts or gets completely erased by a virus, you can have a completely-functional system back up and running in as little as 10 minutes.”

Don’t worry about that you cannot boot into your system,or you have a virus.Redo Backup and Recovery doesn’t need your system to be up.Just download Redo and burn the iso into a Live CD/USB,place it in your CD-ROM/USB drive,and reboot your machine. The system will load a complete mini operating system with a point-and-click user interface into your computer’s memory, without writing any information to your hard drive. Then you will be able to perform backup, restore and recovery actions—guaranteed.

More Features:

Easy graphical user interface boots from CD in less than a minute
No installation needed; runs from a CD-ROM or a USB stick
Saves and restores Windows and Linux machines
Automatically finds local network shares
Access your files even if you can’t log in
Recover deleted pictures, documents, and other files
Internet access with Firefox to download drivers
Live CD download size is less than 75MB

Download and burning the iso:

Download the latest version from here

Burning a Live USB using the latest version of Unetbootin

Restart your computer with the CD/USB in the drive,to boot from the CD-ROM or USB drive, you may need to press a key such as F8 or F12 while your computer is starting up.