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

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):

powercfg -h -size 50 (Value is percentage of total RAM, from 40 to 100.) If you need Fast Startup but want to reduce space, you can set a smaller hibernation file:

powercfg /a Execute: