Bruno,
Check Thread #
980851. It might be you have a read only file or folder in the targer folder, or a file that is in use that prevents the copy to succeed.
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges