Nautilus being named "Files" bugs me. Here's how it looks when my cursor hovers over Nautilus' icon on the Dash, in the GNOME Shell Overview (shots taken from Debian Wheezy):
Here, I've got Nautilus running, but "Files" is the name that appears on the top panel:
And if I search for Nautilus in the Overview, the "Files" icon is shown:
With dconf-editor, you can open org.gnome.shell and look at the "favorite-apps" key. That key lists the .desktop files for the GNOME Shell "Favorites" that you see on the Dash in Overview mode.
The .desktop files are in the /usr/share/applications directory. Nautilus and PCManFM show the names of these files according to the value for "Name=" within each file (SpaceFM shows the actual file names, though). The names of the applications as seen in the Dash Overview, as well as on the Dash bar itself, are also taken from that line in each corresponding .desktop file.
So... Here, Nautilus was called "Files."
In /user/share/applications/nautilus.desktop, I changed Name=Files to Name=Nautilus.
I used the keystroke Alt+F2 to bring up the "Run" dialogue, typed r, pressed Enter. That reloaded the desktop, and now Nautilus is Nautilus. :)
Windows 10 - Microsoft is distancing itself from Windows 8 as much as possible, that they even skipped a version just to provide some cushion. Everyone was anticipating...
37 minutes ago