How to Disable Hybrid Boot in Windows 8
So if your Windows 8 PC is hanging on shutdown or just taking forever to turn off, then follow the steps below to disable Hybrid boot.
Step 1: Open Control Panel and click on Hardware and Sound.
Step 2: Click on Power Options
Step 3: Click "Choose what the Power Button Does"
Step 4: Click "Change Options that are currently Unavailable" at the top of the Window. (You will get a User Account Control prompt, click Continue. The options will not be greyed out anymore.)
Step 5: Remove the Check box from "Turn On Fast Start Up"
Step 6: Open an Elevated Command Prompt. To do this, Simply Press the Windows Key + X. You will see a menu pop up in the lower left hand corner. Click on Command Prompt (Admin) (Click Continue if Prompted)
Step 7: In the elevated Command Prompt type powercfg.exe /hibernate off and press enter. If all goes well, you should get a message telling you the process was successful.
Step 8: Restart the PC.
Thats it! Now your Windows 8 system should not hang on shutdown anymore!
Enable Windows 8 Hybrid Boot
If you need to reverse these steps, just follow the instructions below.Step 1: Open an Elevated Command Prompt. To do this, Simply Press the Windows Key + X. You will see a menu pop up in the lower left hand corner. Click on Command Prompt (Admin) (Click Continue if Prompted)
Step 2: In the Elevated Command Prompt type powercfg.exe /hibernate on and press enter. If all goes well, you should get a message telling you the process was successful.
Step 3: Open the Control Panel, then Power Options.
Step 4: Click "Choose what the Power Button Does"
Step 5: Click "Change Options that are currently Unavailable" at the top of the Window. (You will get a User Account Control prompt, click Continue. The options will not be greyed out anymore.)
Step 6: Remove the Check box from "Turn On Fast Start Up"
Step 7: Restart the PC.
Now Hybrid Boot is re-enabled.
To learn more about Hybrid Boot, see the Microsoft article titled Delivering fast boot times in Windows 8
For more information on Windows Hibernation, and how to enable or disable it, see Microsoft KB 920730