I have downloaded the 8.1 preview from the store 3 times now, always hangs at 44% downloaded. will not continue , no matter how long you wait. I am running Windows 8 Pro with Media Center.
Any answers???????????????????
I'll just wait for the final release vrsion and then wait a few days before updating. Score another OPPS for MS.
Update :07/05/2013 - Woke up this morning and it had updated itself overnight, go figure