Updating xbox 360 offline
This issue is likely due to a high increase in update traffic on the Microsoft server due to the Xbox One console launch, similair to the launch of the PS4.A possible work-around would be to attempt to update your console at a more optimal performance time, such as early in the morning (2AM - 10AM), as you are more likely to encounter a receptive updating time with people at school or work.
Also you may also "Try Again" at least four (4) times before update takes effect.
One of the partitions, the "Exclusive" partition is a custom virtual machine (VM) for games; the other partition, the "Shared" partition is a custom VM for running multiple apps.
The Shared Partition contained the Windows 8 Core at launch until November 2015, where via a system update known as the "New Xbox One Experience", it was upgraded to the Windows 10 Core.
This is a minor issue and should be fixed within a few days after the consoles launch on November 22.
Inserting a disc and installing it should be an easy task, but things have gone awry for some users.