How did elizabeth 1 get people to chnage religion from catholic to protestsant?

Answer 1

She didn't. That was the work of her father, king Henry VIII. King Henry by the way did not so much 'change religion' as replace the pope as head of the English church by himself and rename the 'Roman Catholic Church" (which litterally translated means 'the universal church of Rome') to 'the Church of England'. Later on Henry did replace the Roman Catholic prayer books by prayer books of the Church of England, helped himself to the richess of Catholic monasteries and changed some church rules, like doing away with celibacy for priests and bishops, but for the everyday citizens is was a gradual process.

Only after the reign of Elisabeth's immediate predecessor Queen "Bloody" Mary who had tried to re-install Roman Catholicism by force and after the attempted invasion of England by the Spanish Armada, the English Roman Catholics were forced to choose between joining the Church of England or going underground with their faith and not be eligible for any public office. The reason for this was not so much the faith itself but the suspicion that Catholics might be more loyal to the - mostly Catholic - enemies of England and of the Crown than to England and its King.