Fixing Hibernate problems in Windows Vista System

I went into an apparent problem with my Dell INSPIRON6400.
After cleaning up my "un-necessary" files from Disk clean-up utilities, I lost the ability to hibernate the computer.
This would be a big issue for me as I need to hibernate the system for quick wrap up.
I have found a great solution online about this problem.
The details are here HOWEVER,


I am going to write a quick how-to on it.

• Go to start menu, type command

• Do not press enter key, just right click on it; RUN AS ADMINISTRATOR

• type powercfg -a

• (to see if there is hibernate option)

• type powercfg -h

• YOU ARE DONE!
  

You should be able to see that the Hibernate option is revived!!! (If not: GOD BLESS YOU!)

I must thank http://techwhimsy.com/ for writing such a nice tips.