Here’s a short, useful story that explains — without losing the ability to use Sleep mode. The Case of the Vanishing Disk Space Meera was a freelance video editor. Her new laptop came with Windows 11 and a fast 256 GB SSD. But within weeks, she noticed something strange: her free space kept shrinking for no obvious reason.
Within seconds, hiberfil.sys was deleted. Almost free instantly.
Open Command Prompt as Admin (right-click Start button → Terminal (Admin) → choose Command Prompt). windows 11 disable hibernation file
She did use (which keeps RAM powered, no disk write), but she never needed full hibernation. That huge file was wasted space. What Meera did She decided to disable hibernation entirely , which would remove hiberfil.sys and free up the space — but keep Sleep mode working.
powercfg /h off No registry editing, no reboots needed. Your disk space returns instantly. Reducing writes by removing hibernation can also slightly extend SSD lifespan, though modern SSDs handle it fine. The real win is more free space . Here’s a short, useful story that explains —
powercfg /h size 20 That would reduce it from 19 GB to ~3.2 GB in her case. Check your hibernation file size if you’re low on disk space in Windows 11. If you never use Hibernate (only Sleep and Shutdown), disable it with:
She dug deeper. In , she saw the main drive (C:) and clicked “Properties.” Still not clear. But within weeks, she noticed something strange: her
She verified with: