Need help with copying/replacing files

[bubba1965]

I am looking for a way to copy/replace files from one drive to another drive but only copy and/or replace those files that are not identical.


I have 40 GB worth of files on an external hard drive - I am trying to copy these files to my home computer (which I will do weekly). Right now I have to delete all of the files off my home computer and then transfer all the files from the external hard drive. (This process takes about 2 hours)

What I would like to do is just copy and or replace those files that are not identical to those on the external hard drive

(In other words, only copy/replace the files that have been modified or are new).

I hope this is making sense

Any insight or direction would be greatly appreciated.

Thank you very much