If you're using one of the backup/restore programs I use, I can tell you it's very easy. Unfortunately I can't be more specific because you didn't say which program you're using. I'm afraid my dog broke my crystal ball. I use Norton Ghost, Easeus Todo Backup Free, and occasionally Memeo.
I have all my photos, music, etc backed up on my Samsung 1TB external hard drive. My computer recently had some repairs and all the information on the computer got wiped off. I would now like to put all my music, photos, etc back on my computer. Is there a way of transferring the backed up info from the hard drive onto the computer easily ? I have looked at the HD's user manual and can't find the answer. Thanks very much.