How Do I Back To This Hard Drive After The 1st Backup?

When you backup step through the procedure one step at a time. When asked what to back up choose the option of all files and folders. Select the files you want to backup and when you get to the point of accepting the backup there will be a window where the filename will be shown. At this point enter a new filename for the backup and then it will create a new backup with a different name. Most backup programs will do this for you by adding the date to the filename. There is always the option of when opening the backup program to use the wizard which will drive it for you.