Just 15 months later the company wrote off $7.6bn as it became apparent that it could not kickstart a market for Windows Phone handsets, even when sold at bargain prices.
Microsoft's Joe Belfiore holds up Windows Phones at the Microsoft Build 2014 event.
Microsoft announced that starting tomorrow, February 20, smartphone users running Windows Phone 7.5 or Windows Phone 8.0 will no longer have access to push notifications.
President Cyril Ramaphosa pledges 'new dawn' for South Africa
But for those who are working late or don't have access to television coverage, Parliament's always-entertaining YouTube channel has already primed its livestream for viewing.
Turning off Mobile push notifications would mean that users on the older version of Windows Phone will no longer get any notifications for any messages or emails received apart from their Live Tile also not being updated regularly.
Users of newer versions of Windows Phone software can rest easy for now however, as Microsoft said it will continue to support those versions. Plus, the "Find my phone" function on those operating systems will no longer work, either. The company says that since both of those platforms have reached the end of their support, these services are now able to be discontinued. The phrasing here keeps the door open that things could change in the not-so-distant future.
It is noteworthy, Microsoft will continue to push out updates to Windows 8.1 and 10 devices. While Microsoft phones with Windows OS were nearly out of the markets due to low engagement ratio, the news of Andromeda has warmed up Microsoft's mobile tech launch pad again. If and when that device comes to market, though, it will nearly certainly not be running anything we would today recognize as a Windows phone operating system.