I’m not great with computers but i do try. I just installed a wd book for mac 1tb 2.0 desktop drive. While i was wondering around i clicked the arrow beside one of the two icons on my desktop. The icon disappeared only leaving the mybook icon. The icon that disappeared looked like a cd and would let me get access to a window with a bunch of folders including one that looks like a lock. No i can’ get access to the window. How do i restore the icon to my desktop and what is the name or function of the icon. Thanks for your help
Richard Sullivan