Here am sharing a tutorial for enabling hibernate option in windows 7 ,Due to some compatibility issues windows may disable hibernate option by default in your pc ,To enable hibernate option in your pc, follow these simple steps .
Right click on your desktop select NEW->Shortcut

In the new window paste following string C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 0,1,0
and click next ,type Hibernate as the name for the shortcut
now you can see the new hibernate shortcut on your desktop ,just double click on it to hibernate your computer .
If this method not worked in your PC let me know so that i can help ,Please share questions in the comment box below
Wow…Nice Job…Perfectly Working. Will just do it for my Home PC too. Thanks