I installed MOZY FREE Backup software on my computer by following their instructions.
After installation, my computer kept freezing and then I got the Windows Blue Screen of Death!
Basically, MOZY FREE Backup CRASHED my computer.  I could not even do a system restore. I had to restore my computer from scratch.  I am still in the process of putting back all my programs and files, this is very time consuming.
Furthermore, after I backed up my files, I could not retrieve them using another computer. It kept telling me that I had to register and install MOZY Backup, it just would not retrieve my previous registration.
I am still not able to retrieve my files.  Luckily, I kept local backups on some DVD’s. MOZY may be free, but there is always a catch.  Please be aware Mozy free backup could crash your computer?
Maybe that’s how they get you; then they tell you have to purchase one of their plans???
FYI:  I have 2GB of RAM and a 2.0 GHz AMD processor and it still CRASHED it!

Backup software is a computer program used to perform a complete backup of a file, data, database, system or server. The backup software enables a user to make an exact duplicate of everything contained on the original source. This software must also be used to perform a recovery of the data or system in the event of a disaster. Voluming allows the ability to compress and split backup data into separate parts for storage on smaller, removable media such as CDs. It was often used because CDs were easy to transport off-site and inexpensive compared to hard drives or servers.