How to Disable Hibernation and Delete hiberfil.sys File in Windows 7
Method :- 1 If you use the power options in Control Panel, you can turn off hibernation. However, the hibernation file remains [It May take a lot of space in your Hard Drive ]. To disable hibernation and delete the hibernation file, you have to use powercfg command line tool. Follow these steps.
1)Using the Command Prompt might be the easiest way to enable or disable Hibernation. Click on Start and type CMD into the search box and it will be listed under programs. Right-click on the icon and select Run as administrator.
2) Type this command. powercfg -h off
3) Type exit to come out of Command Prompt
That’s it. If you ever want to turn it back on. Just type powercfg -h on
METHOD :- 2 Enable or Disable Hibernate Through Command Prompt
Using the Command Prompt might be the easiest way to enable or disable Hibernation. Click on Start and type CMD into the search box and it will be listed under programs. Right-click on the icon and select Run as administrator.

The Command Prompt opens and you will use the following to enable Hibernation.
powercfg /hibernate on

Type in the following to disable hibernation.
powercfg /hibernate off

METHOD :- 3 Manage Hibernation Through Control Panel
1) Click on Start and open Control Panel then click on Power Options.

2) On the left side click on Change when the computer sleeps.

3) Now click on Change advanced power settings. In the Advanced Power Options window expand the Sleep tree then expand Hibernate after and change the minutes to zero to turn it off. Or you can specify the amount of minutes you want to pass before it goes into hibernation. After you’ve made your selection click Apply and Ok then close out of the remaining screens.

Where is Hibernate?
What if you try the command line option to turn it on and Hibernate mode still isn’t available? Then what you’ll want to do is disable Hybrid Sleep by expanding Allow hybrid sleep and turning it Off.

Now you should have Hibernate and Sleep as part of the power options in the start menu and will also be an option when you hit Ctrl+Alt+Del.

METHOD :- 4 Disable Hibernate Through Regedit
Note: Changing registry values can cause your computer to become unstable or stop functioning and is only recommended for experienced users.
Now that the disclaimer is out of the way…you might want to completely disable Hibernate mode through a registry edit. Open the Registry and browse to HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power and change both HiberFileSizePercent and HibernateEnabled value data to zero. After you’ve made the changes close out of the Registry Editor and restart the machine.