To , the most effective method is to disable the hibernation feature entirely using the Command Prompt. Because this is a protected system file used actively by Windows, you cannot simply right-click and delete it in Windows Explorer. Quick Method: Use Command Prompt (Admin)
In Windows 7, when you choose "Hibernate" from the Start Menu, the operating system takes a snapshot of everything currently in your system memory (RAM) and writes it to this file on your hard drive. This allows your computer to power down completely—using zero electricity—while preserving your open documents and browser tabs. When you turn the computer back on, Windows reads the data from hiberfil.sys and loads it back into RAM, returning you exactly where you left off. delete hiberfil sys windows 7
Deleting hiberfil.sys is a valid optimization for users with small Solid State Drives (SSDs) or those who never use the Hibernate function. However, it is a trade-off. You are sacrificing the safety net of Hybrid Sleep and the zero-power state of Hibernation in exchange for gigabytes of immediate storage space. To , the most effective method is to
Disabling hibernation also removes the Hibernate option from the Start menu and prevents Windows from saving your open work when the battery is critically low (especially on laptops). This allows your computer to power down completely—using
Before you decide to delete it, you need to understand that this is not just a random junk file—it is a critical system file that governs how your computer sleeps.