i have 2 issues to my elementary Os. The first is the double icon of "file" in my menù,that redirect both to "Home" folder. The second one is the strange icon that appears in the top of my desktop(before IT). Can someone help me?
Elementary has no icons on the desktop, like yours, so you should have installed another file manager, such as Nautilus or Nemo. This is the reason for two icons for files.
About the second question, you should have installed Dropbox, so take a look at :