In order to control how much data is stored on the online backup server, your online backup software allows you  to view all of the data stored on the server and selectively remove files from the server.

To view the data stored under your account, run your online backup software and click on the folder tab labeled "Restore". In the left windowpane, Right-Click on the Desktop icon and select "Get Volume List from Server". This will show you each computer that has been backed up to your account. Now you can navigate the folders to see what data is stored on the server. To delete files, click on the button with the Red "X" to enable the Delete Files mode. Mark any files you wish to delete by clicking your mouse in the empty box next to the file(s) you wish to delete. Click the "Delete Files Now" to issue the command to delete the selected files from the server. WARNING: Once a file is deleted from the server, it can no longer be restored.