System won't turn off, restart, hibernate or sleep after Windows 8.1 upgrade

Question

Help, please!!
Two days ago in windows 8 store popped up an update to windows 8.1 for my pc. I am an owner of two notebook PC-s, both Lenovo, G580(which upgraded successfully without any issues, also it has intel inside) and G585(which upgraded without any issues, untill
the set up completed and it booted up, it has AMD)
So the AMD one, Lenovo G585, refuses to shut down, restart, sleep or hibernate, the only way to shut it down is to force it to turn off, meaning i have to press the power button for a couple of seconds. Along with other issues this is the only one i wasn't
able to resolve. I have contacted my Lenovo support and they said there is nothing they can do and that i can only wait for an update... and in the meantime am i supposed to let this windows 8.1 upgrade
mess up my new notebook?
Ok, so i was stupid enough not to run windows 8 backup before i started this update, silly me, thinking what could go wrong, it's not like M$ described this upgrade as something like evolution of the century,
but enough about that, i have tried every possible solution, updated my drivers, run admin cmd and typed powercfg -devicequery wake_armed - it displayed NONE, typed powercfg -lastwake - it displayed wake history count - 0, i tried entering BIOS and checking
if there is anything in there i could possibly change, found nothing, tried disabling hibernate, still nothing, and each time i try putting my pc in one of those states the screen turns off, and it all seems like the pc will any moment and yet nothing it just
stays on for countless hours unless i once again force it to shut down, also when in sleep mode no keys work for waking it up, mouse and keyboard are meaningless, the only button that works is the power button which turns it off completely and then i can turn
it on all the way from the begining, so far at least that makes me happy, but continuing like this i will mess up my PC.
PC specs:
OS - Windows 8.1 x64, came preinstalled Windows 8 x64
Processor: AMD E-300 APU with Radeon HD Graphics 1.30GHz
RAM: 4GB
Microsoft, any solutions to this one? 

Answer 1

Last week I put a new hard drive in and loaded Windows 8 instead of Windows 7 (which I was previously using), it is a legit copy I had purchased and downloaded from Microsoft when Windows 8 first came out.  I had problems with activation, called Microsoft
and they remotely connected fixing the problem.  Sleep Mode worked until it did the 8.1 upgrade.Now the System will not turn off, Sleep or Hibernate.  If I go to Sleep or Hibernate, the monitor turns off, hard drive turns off, but the fans are still
running.  Try to wake up with mouse and nothing happens, have to hit the restart button.  If I try to shut down, it does the same thing, I can only shut down by holding the button.  I have tried everything suggested here, nothing has worked. 
I would reload, but don't want to have to go through the problem of activating again.  The system32>sfc /scannow found nothing wrong, network adapter is not allowed to wake the computer, sharing turned off, and disabled the hybrid-shutdown-feature. 
Computer has been scanned and re-scanned, not infections.  Video driver was re-installed.  I have checked all settings in BIOS.
I was hoping that someone has found a solution to this problem.
Intel Pentium D CPU 3.73GHz
8.00GB RAM
NVIDA GeForce 9800 GT x 2 (SLI)
64-bit Windows 8.1 Pro with Media Center
No pen or touch input