You can use an external hard drive or back up using a DVD-Rom. You might also think about connecting your computer to a network and copy your files there.
You can backup by your hard drive by using an external hard drive. Another method would be using a norton ghost to back up an finally you can also use back up your information into DVDS and CDs.
There are a lot of ways to back up your data from your laptop. 1. Write your data on DVDs. 2. Backup data on an external hard disk. 3. For small files you can use flash drive/pen drives.
You'll need a cloning software to copy your harddrive. You'll also want to defragment your disk drive before you begin. Then transfer the data and swap the drive.