Microsoft has confirmed that Brad Brooks, the company's vice president in charge of Windows in all its many forms, is to leave the company to join networking specialist Juniper Networks.
In announcing his departure, Brooks told the Windows team: "We touched billions of customers with our messages. We launched amazing products. We have changed the world, and most importantly, we have delivered results.
"Microsoft is a family in its own right, and it has also grown to become a part of my family in so many ways. I can fly into any city in the world and say that I have a Microsoft friend close by that I can call on. That is truly special and amazing.
"But, after a lot of difficult thought, I’ve decided to make a change. These are your battles now, I’ve got new battles to go fight with Juniper Networks (and as you know I have the most fun when the competitive fight is on) and my new adventure will give me plenty of opportunity to have 'fun.'"
Brooks joins a host of higher-ups who are abandoning Microsoft - the most recent being Microsoft's president of server and tools Bob Muglia, who announced his departure earlier this month.
Brooks will remain with Microsoft until the 4th of February, and as yet no successor has been named.