Police patrol outside Windsor Castle two days before the wedding of Prince Harry and Meghan Markle
Police on motorcycles patrol around Windsor on Thursday
Police patrol outside the Henry VIII Gate at Windsor Castle
Police patrol along the Long Walk outside Windsor Castle in Windsor
Women take photos as they lean out of the window of a building near Windsor Castle
Armed police officers patrol the streets near Windsor Castle on Thursday
Crowds gather on the streets near Windsor Castle
\'Royal Borough Ambassadors\' and armed police officers control public access near Windsor Castle
A police officer chats to fans of Britain\'s royal family in Windsor
An illegally parked car is removed from a road next to Windsor Castle
Royal well-wisher Anne Daly holds a photo of Prince Harry and Meghan Markle with her dog Camilla
An aeroplane flies over Windsor Castle in Windsor on Thursday