Backup with Dropbox is Effortless. Dropbox offers 2GB free online storage space for your data that can easily bump up to 3GB or more with the help of your social networks and by inviting friends who aren't on Dropbox yet.
Using Dropbox For File Backup
Dropbox has one big linitation that is your files and folder which you want backup, need to be residing inside the main Dropbox folder before they can be sent to the cloud.
To solve this problem you can use the Microsoft SyncToy, A free application that keeps files and folders in sync with each other. You need to identify all the essential folders that you wnat to bakcup and then sync them all with the local Dropbox folder using SyncToy.
For Auto Scheduling you can use the built-in Task Scheduler in Windows to run SyncToy once per Day ( or sooner) so that the content of local Dropbox folder and the source folder are always in sync with each other.
Step by Step for Backup with Dropbox
Step1. Launch SyncToy and Create a new folder pair. "Left Folder(My Documents)" and "Right Folder (Sub folder of Dropbox)". Set the action as 'Synchronize'.
Step2 . Repeat Step 1 for every folder that you want to back up using Dropbox.
For Example : You want to backup all your video, Just point the left folder to the main "My Video" folder or choose individual folders if you don't have space to backup the entire archive.
Step 3. Enter taskschd.msc in the windows Run box to start the Task Scheduler or go to Start --> All Programs --> Accessories --> System Tools --> Scheduled Tasks.
Step 4. Now create the basic task inside Task Scheduler and give it a name like "Dropbox Backup". Set the time of trigger as Daily (run backup once per day) and choose a time when you are less likely to use your workstation.
Step 5. Under Action, choose "Start a Program" and set the program name as SyncToyCmd.exe or juast say "-R" without quotes and save the task.
That's it! well done. SyncToy will launch everyday at the set time and will put all the new and updated files into Dropbox. Once there, Dropbox will automatically copy your files to the cloud which you can then access from anywhere from almost any device.