"Access denied" while copying files

Hello everyone,
I am trying to copy some files from an old Windows XP computer to a flash drive. However, during the process of copying the files, I recieve an error message saying that a certain file can't be copied because access is denied. The file that can't be copied is of no importance to me and I don't really care that it can't be copied. However, after I recieve the error message, rather than skipping the file and continuing to copy the rest of the files, the copying operation is canceled entirely. Is there any way around it or a 3rd party software that skip copying files with denied access? Thanks in advance.