I'm having this problem as well but I don't even get to start downloading anything. It just says 0% then 'Something happened' along with the error 0x80240031
Has anyone tried installing this update after doing a reset of Windows 8?
I tried it last night and again this morning. Only thing running on this machine is Windows 8 and Office 2013. Still getting the same 0x80240031 error. I have noticed some network issues on my end. I'll try again after I get the network connection fixed.