With no official announcement, Microsoft pulled the Windows RT 8.1 download from Windows Store today. Reports say that users have been plagued with issues from the moment they had updated to the revamped OS, which is basically an ARM-compatible version of Windows 8.1 with many features missing (due to hardware limitations).
Here's what a Microsoft spokesperson has to say about this move:
Windows RT 8.1. 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. We are working to resolve the situation as quickly as possible and apologize for any inconvenience. We will provide updates as they become available.
Although the issue is said to affect only a limited number of users, Microsoft considered it significant enough to stop the entire update process. Here's hoping that we don't have another BBM for Android case here, which was pulled within 24 hours of its release and has been absconding ever since.