[Sami_Lehtinen]

Nothing new unfortunately. Sluggish operation, Windows updates take forever. Updates fail, reverting changes, installing ~150 updates more after 8.1 upgrade. Random SDBUS BSOD, reboots, WiFi / 3G connectivity issues. It seems that everything is working badly and update installation failures and blue screens are quite random and common. Eventually after tens of reboots and installing all kind of stuff you'll get everything installed. If you're lucky. Then you'll install upgrades by the device manufacturer, which take long time and require multiple reboots etc. Luckily I'm able to install these in volume as well as tasks are rarely urgent. So I can put tens of tables on table and run updates, after a few hours I'll revisit those, see what the situation is and continue. Yes, it's not consistent, some tables and laptops in the batch can be much slower to install and other faster, others fail and some won't etc. It's just basically absolutely horrible experience. I feel and know very well the feeling you described. Suddenly touch screen is totally unresponsive, or doesn't work at all. You'll need to use USB-keyboard and so on. As well as the sleep mode (aka connected standby) sucks life out of the battery really quickly. Properly hibernating device automatically is made quite hard, but is doable after all.