Maintenance :: Fans Still Running After Shutdown Of Windows 8

I'm running into a really annoying issue after upgrading from Windows 7 to Windows 8.

I first noticed it during the initial (clean) install; when the installer tried to reboot, my machine (an acer aspire 4755G) just hung after the initial shutdown. That is, after the screen turns off, the power lights and fans are still running, and the machine itself doesn't restart. (I let it sit for a good 15 minutes, and it still didn't change).

I managed to do a hard reset (power button for 5 seconds) and the install finished, but every shutdown/restart has been like that. Interestingly enough, hibernate works just fine.

I've looked at other solutions where it said to use the "bcdedit /set disabledynamictick yes" command, and that didn't work.

I also turned off the "Fast Boot" option in the power settings menu. That didn't work either. So far, the only option is to do the hard shut down by holding down the power button, but that proves to be horribly inconvenient.

I've also updated all my drivers to the proprietary onces given by Acer, yet this problem still persists! It worked fine on Windows 7, so I'm not sure what went wrong here.