Also be aware that Narrator as it exists prior to Windows 8/8.1 is not the Narrator you're used to in Windows 8/8.1 or 10.
I believe that even back in Windows 7 one enables/disables the ability to use whatever the built-in keyboard toggle for Narrator in Ease of Access settings, and what it is should be documented there. It will need to be turned on.
Brian - Windows 10 Pro, 64-Bit, Version 1903, Build 18362
Many of the insights of the saint stem from his experience as a sinner.
~ Eric Hoffer