Why do you think the system copies files much slower than it removes it? It is because Windows does not actually delete files from your hard disk or removable media, but simply clears up information about the path to it, so the file is still there, available for retrieval by advanced data restore utilities, but no more noticed by the system itself. Use AbsoluteShield File Shredder to remove files for ever.
     AbsoluteShield File Shredder is a tool that lets you securely remove files from your computer. It takes a file or a group of files you specify and not only deletes a path to it, but also rewrites the position it used on the disk a number of times so it is not possible to restore them.
     Use the tool with caution as it really does what it says - try it out on junk files, not on system drivers. Download this free tool now and check it out yourself.