Fixing Problem of Windows Resume Loader and keyboard stuck

I encountered a fairly annoying problem with my laptop few day ago (On my lenovo G460 due to battery low and hibernation). I left the system running on battery last night, so it automatically hibernated. When I recharged it and powered it back up this evening, the keyboard would not respond on the Windows Resume Loader screen. This posed a problem, as there was no way to get the machine to return to Windows. A quick search yielded a number of other people who have encountered this problem, but not many fixes. Plugging in a PS/2 keyboard was the usual solution given, but as it’s a Laptop, there’s no PS/2 port. I think connecting a USB keyboard might have worked, but when I connected my USB keyboard it doesn't worked

I'm not sure why the keyboard would not respond, or if it will happen again; however there is no easy way around the issue, since Windows ignores the F8 key when hibernation data is present, so I couldn't force it to delete the data. (The menu choice was right there, but couldn't be selected).

Here’s how I fixed it:

1. Connected my bootable USB pen drive containing Windows 7 into it.(In place of pen drive you can also use Windows 7 CD)
2. Access the recovery options and bring up Command Prompt.
3. You need to delete the hibernation data (hiberfil.sys). This is a protected file; however, and it is not easy to delete even at the administrative recovery command prompt. Change to the drive letter for your hard drive. You’ll then need to enter the following commands:
    
   takeown /f hiberfil.sys
icacls hiberfil.sys /reset
attrib -h -s hiberfil.sys
del hiberfil.sys
    
   (Those commands are necessary since by default even the administrative user doesn't have access to modify the file).


4. Reboot the machine.

The system will then boot normally (but without the hibernation data, it’s a cold boot, so you’ll lose anything you had running when the system originally hibernated)