"Disk Not Ejected Properly" message
Following disconnection of all our equipment for house decorating, we get the above message, with the instruction "Eject "Time Machine" before disconnecting or turning it off.
This recurs every time the computer is used, building up all down the right hand side of the screen. How can I stop it? Everything was switched off and / or ejected before the decorating. Time Machine is working as usual.
Im sorry I posted this first in "High Sierra" but our OS is Mojave.
Thank you for any help!