ETA: @
theducks - the OP is referring to desktop shortcut icons, there's no This PC in calibre
@
LordP - Next time you do an upgrade: after accepting the license agreement, click Advanced, then OK the default location, on the next screen you'll see a
Shortcut on desktop option, turn it off.
It will stay off in subsequent updates -- but I always click though Advanced, just in case it doesn't, or there's a new option.
BR