Disabling hibernation and deleting hiberfil.sys to free disk space

Windows 7 enables hibernation automatically after installation, saving memory contents to hiberfil.sys on shutdown. This speeds startup significantly: instead of loading applications individually, the contents of hiberfil.sys are restored to memory.

Disabling hibernation and deleting hiberfil.sys

  • Open Start, type “cmd” and run as Administrator.
  • type “powercfg.exe -h off”

hiberfil.sys is deleted automatically when hibernation is disabled

Enabling hibernation and deleting hiberfil.sys

  • Open Start, type “cmd” and run as Administrator.
  • type “powercfg.exe -h on”

hiberfil.sys is created automatically when hibernation is enabled


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