Don’t back up a shortcut
I've mentioned this before many times, but it bears repeating often especially since I saw it at least three times this week. First, I want to commend the computer users out there for backing up and thinking of backing up! However, it is imperative to know what you are backing up.
A shortcut is indicated by a little arrow in the lower left hand corner of a folder or file. If your backup media has any of these types of icons on it, your backup is worthless. A shortcut is simply a "pointer" to where the actual data is saved. Backing up shortcuts is extremely fast because there is not data in a shortcut. I too often see computer users dragging a program icon (shortcut) or a shortcut to My Documents or My Pictures to their CD drives, external hard drives, or flash drives then wonder why they have no backup should they need it.