Microsoft Terms of Use – Effects of the new service contract
Block and delete any content that is proven to violate these laws. If Microsoft receives a complaint of copyright infringement from third parties or local law enforcement agencies, Microsoft may remove your content without notice to you.
Loss of access to services and data
The new Microsoft service agreement requires you to sign up for services at least once every 270 days if the service is free. This confirms that you continue to use the service. If you do not have access to the Services for 270 days, you may lose access to the Services.