Delete hiberfil.sys Hibernate File Windows Vista

My main PC is Windows Vista and I’m getting a bit low on space, I needed to do some editing on a large audio file and during this it creates a massive temp file, and it kept filling my C drive up.  As a temp fix I found a way to temp disable Windows Hibernate mode. 
The hibernate file just saves the state the machine was in when you put it into Hibernate mode, it is safe to delete.
  1. Click Start, and then type cmd in the Start Search box.
  2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
  3. When you are prompted by User Account Control, click Continue.
  4. At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
  5. Type exit, and then press Enter to close the Command Prompt window.
I then deleted the hiberfil.sys file from the root of the C drive, this then gave me an extra 4Gb. 

I did what I needed to do and then repeated the above procedure but this time typed powercfg.exe /hibernate on to re enable the Hibernate mode.


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