Question: Finder dissapeared from top tab
Product is iMac, macOS High Sierra v.10.13.3
Finder tab disappeared from the top and a grey colour covers half the screen and disables:
* side by side split screen,
* mission control to separate screens and
* when in full screen cannot find buttons to exit and esc doesn’t work to bring in the dock,
* plus of course all the Finder functions aren’t available.
What I tried unsuccessfully so far.
Force quit Applications to relaunch Finder
Cut power & restart.
Can someone please help me restore Finder tab and eliminate the grey screen?
thank you. Hugo