'backtracking' is equally often used in a metaphor
ic sense, or one not connected with the literal meaning given by Marvinius
, of retracing
your steps, going back to the last junction
and trying a different route
You may well have to backtrack if your changes to a computer program, for example, do not have the required result; reload your backup (you did have a backup?), and try again. Similar to Back to Square One, but perhaps requiring additional work to get back to that pristine state.