Windows stores hiberfil.sys file within the drive C. The more RAM, the bigger hiberfil.sys file will be there. All you left opened remains in that state even if you unplug your computer. It writes all data from RAM to the drive (also known as ROM-energy-independent memory). Cut down juice and Windows will lose all unsaved data. When a PC goes to sleep it consumes much less power but remains depended on a power source because data remains stored within RAM and RAM can’t keep data unless there is a constant supply of power. Second is sleep mode and third is hibernate. That is how Windows properly turns off itself. Modern Windows versions have several shutdown modes. Hibernation File hiberfil.sys – What is That? This article has all you need to know about the hiberfil file and (spoiler) hibernation in Windows 10. Windows simply does not allow anybody to do that.
If you read this article, then you probably wonder what is hiberfil.sys file and why on Earth it consumes so much space on my drive? What cringes users’ gears more is that there is no obvious way to delete hiberfil.sys file.
