Just purchased and received my RT 64GB yesterday. Instantly had to update everything then update to 8.1. Did all this last night, woke up this morning and it seemed like it shut itself off sometime last night as I touched the start button and it didn't come one. It was on the charger all last night also. So I took it to work with me this morning and let it finish the last 10 updates on my commute. Once I got to work it had finished installing and is now in "Configuring Windows features". It started that around 7:45am and it is now 9:30am and is currently at 15%. Is that okay or not?