Vista SP1 changed the file copy algorithm to cache files, so that it would appear faster than it is (and other reasons): http://www.codinghorror.com/blog/2008/

Vista SP1 changed the file copy algorithm to cache files, so that it would appear faster than it is (and other reasons): http://www.codinghorror.com/blog/2008/03/actual-performance-perceived-performance/comments/page/2/ http://www.codinghorror.com/blog/2008/03/actual-performance-...