I have a document that always comes up the the Spanish (ES) keyboard activated.
I click on the keyboard, change it to English. Save the document. Load it again and it is Spanish.
I go to Review tab, set language to English. Save. Load again and it is Spanish.
What can I do??
Are you selecting all of the text in the document when you change the language to English. Have you unchecked the "Detect language automatically" box in the Review>Set Language>Language dialog?
Note, the keyboard language is set via the WIndows Control Panel, not in Word.