Last Updated: Wednesday, August 26, 2015, 22:39
Analysts say that's a good start, although the company is hoping to get the software installed on a billion devices over the next three years.
Last Updated: Thursday, December 12, 2013, 12:47
Under the new security features, users will soon be able to see a recent activity log through Microsoft's website.
Last Updated: Thursday, October 3, 2013, 15:40
Microsoft has revealed that it gave out data on 1462 accounts to the Australian government in the first half of 2013.
more videos >>