If you've been trying to upgrade to Windows RT 8.1 but haven't been able to, here's why. It's been taken off the Windows Store "temporarily" due to a niggle that's seen it playing up on updated devices.
Not only that, here in Blighty, Argos has been selling the Surface 2 tablet ahead of its launch on Tuesday. Though it's now stopped and is investigating the situation. But not before some lucky punters walked right into the shop and picked theirs up.
According to a reply on the Microsoft Community forum, "Microsoft is investigating a situation affecting a limited number of users updating their Windows RT devices to Windows RT 8.1. As a result, we have temporarily removed the Windows RT 8.1 update from the Windows Store."