http://spywareitdaiuyfo2sqb5vsg7mek5cjabdr73luhnda57t2hyuzg7yyd.onion/articles/bing.html
Images and related information, such as picture metadata. For example, we collect the image you provide when you use a Bing image-enabled service." Microsoft claims to store this information for an unlimited amount of time, but it claims that it will eventually anonymize this information in a process that takes 18 months to complete.