Dont like windows explorer, or want to improve your productivity? Try these opensource file manager alternatives.
emelFM2 is a file manager for UNIX-like operating systems. It uses a simple and efficient interface pioneered by Norton Commander, in the 1980s. The main window is divided into three parts, described as “panes” or “panels”. Two of those (side-by-side or top-to-bottom) show the contents of selected filesystem directories. The third pane, at the bottom of the window, shows the output of commands executed within the program. Those panes can be resized, and any one or two of them can be hidden and u
GNU Midnight Commander is a visual file manager, licensed under GNU General Public License and therefore qualifies as Free Software. It s a feature rich full-screen text mode application that allows you to copy, move and delete files and whole directory trees, search for files and run commands in the subshell. Internal viewer and editor are included. 
PCMan File Manager (PCManFM) is a file manager application developed by Hong Jen Yee which is meant to be a replacement for Nautilus, Konqueror and Thunar. Released under the GNU General Public License, PCManFM is free software.
ROX-Filer is a minimalist graphical file manager for the X Window System. It can be used on its own as a file manager, or can be used as part of ROX Desktop, a complete graphical desktop environment for Unix-like computer operating systems. It is the file manager provided by default in certain Linux distributions such as Puppy Linux and Dyne:bolic.