Mi computadora esta estupido

It thinks I speak spanish! Sometimes. Usually it waits until I’m into something way over my head, installing new software, or trying to change some setting in some menu I have no business being anywhere near-THEN, it whips out the Espanol! And before I know it I am saying Si and Acceptar and Finalizar to who knows what! As if computer problems weren’t frustrating enough - I have to deal with them in Spanish!?! Am I on Candid Camera?