Need to finish copying a large number of files to a secondary location without duplicating any of the files already copied. Which file copy method or utility will avoid the problem I describe below?
I was using the Windows 8.1 “Copy to” option to copy our music collection to a backup location on the same PC. The total size to back up is 968GB. When the task had reached 946GB it paused/stopped with an error message window saying that a particular file name is too long for the target location. The error message window was so tall I couldn’t see the bottom of the window to check if I could tell it to skip the file. For whatever reason, I was unable to resize the window (tried to click and drag various corners of the window and tried to click for full screen but both of these failed. Finally, I closed the window.
Thought if I restarted the entire copy task it would display the common “A file with this name already exists. Do you want to replace it? With options to Skip file, Do this for all files, etc.” But no such message appeared; the entire copy task began and kept on going, and it duplicated over 2GB of files before I halted it and deleted the duplicate folder(s).
I don’t want to tediously go through the entire collection trying to find which files have yet to be copied. What’s my best option for copying the remaining 22GB of files to be backup location, please?
