Microsoft is starting to open Windows Update up to any third-party app that needs to be updated. The software giant is now allowing developers to sign up for a private preview of what it calls the Windows Update orchestration platform, that will enable Windows Update to support any update for apps or drivers in the future. It’s focused largely on business apps, but it will be open to any apps or management tools.Windows Update is largely used to update the core parts of Windows right now, alongs...