Paragon Backup & Recovery is a great free backup tool for windows 7. Its very important to backup your data. Its very easy to use and manage.
Choose what you want to backup.
Decide how often you want to backup.
Setup regular backup options.
Choose where to save your backup.
It can restore your computer to an earlier state without losing data and reinstalling and reconfiguring your programs.
Where can I read more details about Paragon Backup & Recovery
You can read all details, manual on its website here
Where can I download free copy
You can download free copy of Paragon Backup & Recovery from here.
It support both 32-bit and 64-bit of windows 7, windows vista and windows XP.