Also means
settled
Usage Note
Instalado is the past participle of instalar used as an adjective, describing something that has been set up or fitted (el software instalado = the installed software). It can also describe a person comfortably settled in a position or role, sometimes with a hint of complacency (está muy instalado en su puesto = he's very comfortable/entrenched in his job).
Examples
"El programa ya está instalado en el ordenador."
Natural Translation
The program is already installed on the computer.

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