Switch computer off. Unplug everything, take the PSU from AC takeoff battery from mobo, and leave the computer for an hour.
install all in and reboot. (Clear CMOS)
I was hoping there would be some kind of driver update is required. This is the exact error which I get.." The device driver for ST380011A device is preventing the machine from entering hibernation. Please close all applications and try again"
ST380011A is my SATA HDD. This is the first time I am getting this error though I have had this hdd since years.