Go to bottom left and click 'Start'
Go to 'Control Panel'
Select 'Regional and Language Options'I have a Brazilian keyboard and the default language is English?
Click on 'PT', that very same language icon that you have on your task bar. In it you'll see 'SHOW LANGUAGE BAR'. Click on that and the PT will become a sort of yellowish bar atop the right side of your screen.
Click on the downside arrow. There you'll see 'Configurations'. Click on that and restore whatever language you prefer for you keyboard.
Hope this helps you! Good Luck!