Kelvin,
AFAIK there is no way to convert an Access app to an .exe; to that end,
you would need to build your application (or, at least, the front end)
with a different development tool such as a Visual Studio or .Net app,
or Delphi, to name a few.
For this reason, MS provides the runtime alternative for Access
developers; think of the runtime environment as a reduced Access
environment, in which Access apps can run only, while there is no design
capability. The idea is that the developer distributes the Access app
together with the Access runtime, so the user can run it even though
they do not have the full Access version installed on their PC, so there
is no cost for Access incurred for the user.
HTH,
Nikos