Windows 10 TP build 9879 HDD issue (PUIS/PM2)

Windows 10 TP build 9879 HDD issue (PUIS/PM2)
Hello everybody, Microsoft is moving on a new line of updating their Windows 10 by pushing the updates as preview builds online on November 13, 2014. This build is a full build not just an update so it’ll be installed as an in-place upgrade with full installation procedure of Operating System as well as apps. Anyway, this version is just an beta product, therefore it's contains many issues and most of theme relates to HDD  (PUIS/PM2). Problem descrition: Download the .ISO file from microsoft server and install Windows TP build 9849 ! Then after I updated to package 9860, it's still fine ! But for the package 9879, after finishing update, the laptop restart again, everything work well ! For the next time I restart, the BIOS does not recognize the HDD anymore! Explaination: I've pinpointed the issue which is related to this function of HDDs http://en.m.wikipedia.org/wiki/Power-up_in_standby Your motherboard doesn't support PM2 and neither does mine. You should get your old HD…