Don't even bother trying to upgrade to Windows RT 8.1 today
 

f you're one of the few people who own a Windows RT tablet (don't all raise your hands at once, now), you just got a chunk of your Saturday back. Citing a "situation affecting a limited number of users updating their Windows RT devices to Windows RT 8.1," Microsoft has pulled the upgrade from the ...

http://www.engadget.com/2013/10/19/d...=rss_truncated