BUG #15864: problems with the instalation of PostgreSQL 9.4

The following bug has been logged on the website:

Bug reference:      15864
Logged by:          Hector Mancilla Hinojosa
Email address:      hectmh71@gmail.com
PostgreSQL version: 9.4.0
Operating system:   Windows 10 Pro
Description:

Hello, 

I have problems with the instalation of PostgreSQL 9.4, it shows the next
message:

Problema al ejecutar el paso post instalacion. la instalacion no pudo
finalizar correctamente.
La inicialización del clúster de la base de datos falló.

and checking the log file, shows the next:

Error de CScript: Error al ejecutar Windows Script Host. (Acceso denegado.
)

I need some help to fix the error.