How do I enable Hybrid Boot in Windows 8?

Solution 1:

“Enable Hybrid Boot” is grayed-out when it is unavailable for some reason.

From What is Hybrid Boot in Windows 8 and how does it work? :

To use Hybrid boot, your system must have a hibernation file and the drivers must support hibernation. Hybrid boot is not available if you run Windows 8 in a Virtual Machine.

To change Hybrid Boot in spite of it being unavailable, you will need click on "Change settings that are currently unavailable", but this will probably have no effect (or worse) :

Solution 2:

Hybrid Boot is disabled when ...

• ... you have Hibernation disabled, you can enable it by executing powercfg /h on.

• ... your computer doesn't support Hibernation, this is rare but possible.

• ... your drivers don't fully support Hibernation, often seen when you use Virtualize or VHD boot.

  It is best to run your OS natively and make sure all your drivers are installed, WHQL and up-to-date.

More explanation on why it doesn't work can be received by using powercfg /a.

In case you get the error The hypervisor does not support this standby state, you need to uninstall Hyper-V to fix this error and reboot your system which should make the grayed out option available to you...