Ableton Forum

Currently, if one is using Ableton Live 10 on Windows, and enters full-screen, they are unable to access the system menu (file, edit, view, etc.)
On OS X, it's possible by moving one's mouse to the upper left corner, and - in previous versions - it was possible by holding down alt.
It'd be pretty neat if this functionality could be added to the Windows version as well.

HardlyARiot wrote: On OS X, it's possible by moving one's mouse to the upper left corner

Anywhere in near the menu bar region, not just a corner. Windows has this on the OS level for, eh, windows. It's possible Ableton use something else instead of that API or that they turned off this menu because there was some problem. It's odd it isn't there anyway.