Click "Start" (Windows Orb), "Computer," or click the "Windows Explorer" folder icon, or open any folder on the desktop to start the Windows Explorer interface.

Click the source drive letter in the left pane of the Windows Explorer window to navigate to the source drive and click on the folder that is to be copied. Double click on folders to navigate within them to select specific folders or files.

Click once on the file or folder to be copied to select it. Select multiple individual files or folders by holding down the "CTRL" key on the keyboard while clicking on files or folders. Select a series of files or folders by holding down "Shift" while clicking on files or folders. Release the "CTRL" or "Shift" key.

Right-click on one of the selected files or folders. Click "Copy" from the context menu to prepare a copy of the files or folders that will be duplicated onto the destination hard drive, or alternately click "Cut" from the context menu to prepare to move the files or folders onto the destination hard drive, ultimately deleting them from the source location.

Click the destination drive letter in the left pane of the Windows Explorer window to navigate to the destination drive and click on the folder that data is to be copied to. Double click on folders to navigate within them to select specific folders to place data in.

Right-click within the white space in the Windows Explorer main window and click "Paste" from the context menu.

Be careful not to drag the mouse across files or folders while the mouse button is being held down as this will create an instant copy of the selected files or folders in the same location or move the selected files into a folder, depending on the exact circumstances.