Have a windows problem I cannot get around.
In windows 7 and 10 I am trying to prevent multiple copies of a program being opened from the desktop.
In XP, there was a Right Click Option. – Allow only one copy of the program to open.
This is missing from newer Windows .
I have set up a neighbour’s windows 10, and wife regularly inadvertently runs email program multiple times
Is there any cure for this in windows 10?