1. A computer-implemented method of synchronizing files between multiple client computers using location metadata, the computer-implemented method comprising: accessing, by a synchronization module executing in computer hardware comprising one or more computer processors, synchronization criteria for identifying files to synchronize between a first primary storage device associated with a first client computing device and a second primary storage device associated with a second client computing device; initiating a secondary copy operation in which one or more files stored in the first primary storage device are copied to one or more secondary storage devices to create a secondary copy including the one or more files; accessing, by the synchronization module, location metadata associated with each of the one or more files in the secondary copy; reviewing the location metadata by the synchronization module; based at least in part on the review of the location metadata, identifying, by the synchronization module, at least one file in the secondary copy that meets the synchronization criteria for synchronization between the first primary storage device and the second primary storage device; accessing the at least one file; and communicating the accessed at least one file to the second client computing device for storage in the second primary storage device to synchronize the at least one file between the first primary storage device and the second primary storage device.