During a copy of a bunch of files with Windows Explorer, you can get the following error:
Error Moving File or Folder: Cannot move file.ext: It is being used bij another person or program. Close any programs that might be using the file and try again
With Windows Explorer, it’s not possible to trace where it stopped and which files still has to be copied. A good alternative for Windows Explorer is YCopy.
Ycopy is a free file copy / data migration utility. In short it is a utility that helps you copy files from one disk to another. When it encounters a file it can’t copy it makes a note of it and then moves on to the next file. At the end of a copy, you get a log file with a summary of all the errors it encountered during the copy.