Best way to transfer 24gb of photos/videos to external hard drive?
My iMac is from Mid 2010 running on OS X Yosemite version 10.10.5 3.06gHz Intel Core i3, I only use the computer now for web searching but I would like to export all of my photos in the Photos App to a 1tb external hard drive and then factory reset the whole computer back to new.
The issue I am having is that after dragging the Photos Library folder into my backup drive, it says there is about 24gb to be transferred and still after a couple of hours, it still says zero bytes of 24gb remaining and is still loading an estimated time left.
Is it because I am trying to move too many files? Is there another way?
I've tried manually moving bit by bit but I would lose my spot and have to try to do it all over again and I would end up with a lot of duplicates.
Please help me out!
iMac 21.5″, OS X 10.10