45. More on Virtual Memory System Files

• When a Windows system is put into hibernation mode, the contents of RAM is stored on the HDD

      c:\hiberfil.sys
  

• Program data is loaded into virtual memory in units called pages.

• As the program grows larger than memory, the oldest pages are swapped out into

      c:\pagefile.sys
  

• Swapped pages can be used later if the program is still executing and needs that memory again.

• pagefile.sys is a system, hidden file, located on the system root directory.