Hibernation is a state you can put your computer in instead of shutting it down or putting it to sleep. When your computer hibernates, it takes a snapshot of your system files and drivers and saves that snapshot to your hard drive before shutting down. This allows your computer to start up faster, because it doesn't need to re-establish those files and settings.
However, when hibernate is enabled it reserves some of your disk space for its file. If you really need the disk space, you can disable Hibernate by following the steps below.
Step 1: Right-click on the Start button and choose Command Prompt from the pop-up menu. ( If you are prompted by the User Account Control asking "if you want to allow this program to make changes to your computer", click Yes to proceed).
Step 2: In the Command Prompt window, type powercfg.exe /hibernate off and press the Enter key. Exit the Command Prompt window.
If you need to enable Hibernate, follow the step below:
Step 3: To enable hibernate in Windows 10, open the Command Prompt again and type powercfg.exe /hibernate on and press the Enter key.