However, if you wish, you can add it at any time you want and here’s how:
Press Windows key + R, and it’ll open Run Command Box.
Within that, type “powercfg.cpl” (without double quotes) and then press “Enter” key. Now, you can see “Power Options.”
In the left sidebar, click on “Choose what the power buttons do.”
Now, click on “Change settings that are currently unavailable” link at the top.
Find and select “Hibernate” option.
Click on “Save changes” button at the bottom.
That’s all. All done.
Not only it adds Hibernate to Power menu in the Start menu, but it also adds Hibernate to Power menu shown in “Sign in” screen and “Windows Security” screen. Also, it adds the Hibernate to “Shut Down Windows” popup and “Shut down or sign out” option in Power User menu.
If you want to remove Hibernate from Power menu in the future, then follow the above steps and instead of checking, uncheck “Hibernate” option.