No, it's not possible to install windows without a start menu.
That doesn't mean you can't [temporarily] remove the start menu and taskbar, however.
FIRST WAY:
Win + R and type taskkill /IM explorer.exe /f
.
However, I don't recommend this because it will force you to open task manager in order to use the file explorer: CTRL + ALT + DEL (Then hit task manager, click New task
and explorer.exe
).
SECOND WAY:
While this may be less appealing, it is less dangerous and more useful.
R CLICK Taskbar & click properties
Check Auto-hide taskbar and small icons.
This should give you enough screen real estate to continue working as if it were fulscreen.
Also, if you are working in Windows 8/10 apps, use tablet mode. This will fulscreen the app.