On windows navigate to:
C:\Program Files\Adobe\Adobe Lightroom
Select lightroom (the application) and right-click and choose Send to Desktop.
On Mac OSX launch Finder and go to:
Macintosh HD >> Applications >> Adobe Lightroom >> Adobe Lightroom.app
After launching the app right-click (control-click) on the dock icon and choose:
Options >> Keep in Dock
Thanks for you answer. It is a nice workaround, but not the real solution I am looking for. I want Lr en Ps to show up in the start menu, nicely sorted alphabetically, like they did in previous Windows versions. This way i get a clutter of shortcuts on my desktop of applications that for some reason yet unknown, happen to be unable to show up in start.
Why not right-click the shortcut and pin to the taskbar. You can then clear the desktop.
Locate the Lightroom.exe as explained above. Right click on the file and choose "Pin to Start". That's all there is to it.
It is not quite that simple. Through other sources I have now learned that Microsoft, in its infinite wisdom, has limited the number of items in the Windows10 Start menu to 512. That would not be so bad, but Windows10 lists automatically all kinds of items there, that are not really apps or programs at all. Like read me files and links to support websites. They are working on an update, but it is not there yet. Anyway, it is not adobe's fault, but Microsoft's.