Just done the update of my Windows 8 Media Center to 8.1. First issue was I looked in the store and could not see the update. I was looking for an ‘update’ in the top right not a huge application entry in the middle of the screen. Strange how you can miss the obvious
The download took about 30 minutes which worked in background whilst I was using Media Center. It then did a reboot, the main install of files took about 30 minutes too. It seemed to sit at 85% for a long time, then another reboot. A few ‘preparing devices’ messages and ‘getting ready’ for a good 10 minutes, then ‘Applying PC settings’, another reboot then ‘setting up a few more things’ . I then had to accept some licenses, and login with a LiveID, and eventually it started, and everything was working.
I did not time it exactly but I think about 90 minutes all told.