For the users' own good, of course. http://www.bit-tech.net/news/bits/2016/04/29/microsoft-locks-cortana/1
Makes concessions in a growing market. http://www.bit-tech.net/news/bits/2015/09/24/microsoft-baidu/1
Bing brand subsumed into MSN. http://www.bit-tech.net/news/bits/2014/09/08/msn-relaunch/1
Testing was inaccurate, company claims. http://www.bit-tech.net/news/bits/2013/04/23/microsoft-bing/1
Separate names with a comma.