Here’s a detailed, step-by-step write-up on safely removing hiberfil.sys from a Windows system. If you’ve ever noticed a large hidden file named hiberfil.sys in the root of your C: drive, you might be wondering what it is and whether you can delete it. This file is created by Windows to support the Hibernation feature, which saves your current system state (open programs, documents, etc.) to disk so you can shut down and resume later without losing work.
