Hi, all.. I am not sure that had anyone ever post problem like this, but i had try to search already. Early few days a ago, i had start my Vaio Z VGN-Z16SNB install with Windows 8.1 WMC (legally registered) after did not use it for 2 months. Unfortunately the time when i start my Windows, it cannot connect to Wifi but the Windows showed message that the laptop had successfully update and state that this computer did not use for a long time, then it shutdown. After that i cannot completely boot it any more. Even with Hiren boot disk or Windows 8.1 with WMC. I had try for several time, some appear try to recovery the Windows for not more than 1 minute, some can reach to repair Windows but still last more than a minute too. Can anyone had suggestion, please. Thanks in advance PS. Lately, it can complete booting for a while (less than about a minute), then the screen turn black and gone again.