Disable Hiberfil Sys [best] File

powercfg /availablesleepstates Or check hibernation status:

Alternatively, verify in File Explorer (with hidden & protected OS files visible) – the file should be absent. To restore hiberfil.sys and hibernation functionality: disable hiberfil sys

powercfg -h on This recreates the file with the default size (approx. 40–75% of RAM). To set a (e.g., for Fast Startup only): restoring the exact pre-hibernation state.

dir C:\hiberfil.sys /a You should see: File Not Found disable hiberfil sys

1. Overview hiberfil.sys is a system file created by Windows to support the Hibernation feature. When a computer hibernates, the entire contents of RAM (including open documents, running applications, and system state) are written to this file. Upon waking, the system reads the file back into memory, restoring the exact pre-hibernation state.