A veces Windows almacena en caché las variables de entorno. Para forzar la actualización:
For Spanish-speaking system administrators, this error is a daily companion. It appears not only with rar but with python , node , git , and any other third-party tool. The language of the error doesn’t matter; the solution is universal. Yet, seeing it in one’s native tongue adds a layer of personal frustration. The machine is not just failing; it is failing in your language, which somehow makes the miscommunication feel more acute. rar no se reconoce como un comando interno o externo
En la ventana que aparece, haz clic en el botón en la parte inferior. Edita la variable Path : A veces Windows almacena en caché las variables de entorno