The Sundarban
Printed Apr 10, 2026, 6:00 PM EDT
Afam’s ride in tech publishing dates relief to 2018, when he labored for Kill Tech Much less difficult. Through the years, he has built a popularity for publishing prime quality guides, critiques, guidelines, and explainer articles, holding Dwelling windows, Linux, and initiate source tools. His work has been featured on prime websites, including Technical Ustad, Dwelling windows Document, Guiding Tech, Alphr, and Next of Dwelling windows.
He holds a first level in Computer Science and is a safe suggest for knowledge privacy and security, with several guidelines, videos, and tutorials on the realm published on the Fuzo Tech YouTube channel.
When he’s now not working, he likes to employ time with his family, biking, or tending to his backyard.
One of the trickiest issues I dangle confronted with Dwelling windows is working out of storage with out any clear culprits. When this occurred to me, downloads had been magnificent, and I did not dangle any mountainous apps ingesting space. When I came across the cause, it was once an surprising system file utilizing up space, and I produce now not remember enabling it.
Hunting down it was once as easy as utilizing one command, and instantly, I regained plenty of gigabytes. But sooner than you poke to disable it as I did, be certain to comprehend into consideration the alternate-offs as a result of this file impacts how the OS handles startups and shutdowns. Quiet, or now not it is a really easy device to reclaim space if you attach now not have to uninstall anything.
How great space hibernation makes utilize of to your PC
It scales with RAM, and high-memory programs lose the most space
The file that you just dangle gotten got to delete is is named hiberfil.sys, however it absolutely’s now not evident. This file is safe by Dwelling windows and moreover made invisible by default. So, to detect it, you dangle gotten got to first grab the following steps:
Press Dwelling windows + E to initiate File Explorer and navigate to your C force.
Now, click on the ellipsis (…) in File Explorer and choose Alternatives to initiate the Folder Alternatives window.
Navigate to the Stare tab, then choose Level to hidden recordsdata, folders, and drives, then scroll down and uncheck Shroud safe operating system recordsdata (Advised).
Once you word these steps and return to the C force, it is doubtless you’ll perchance well behold a recent file known as hiberfil.sys. On one of my programs, this file was once 12GB, while on one more, it was once upright 6GB.
The affect of hiberfil.sys depends to your setup and the dimensions of the available space. On my 1TB SSD, it was once 12GB, and I would possibly perchance well perchance come up with the money for to fail to note it, however on an already corpulent 256GB SSD, 12GB will likely be too great to fail to note. The dimensions of this file will not be at all times undoubtedly continually fixed and depends to your RAM size. So, or now not it is likely to be larger on extra highly efficient programs.
Related
The command that deletes it and frees up space
What in truth happens if you poke it
To delete this file, turn off hibernation utilizing a command suggested that has administrator privileges. Right here is the command to poke:
powercfg /hibernate off
Running this command causes Dwelling windows to robotically delete the file and free up the storage it occupied. The command executes instantly with out any sort of affirmation or warning.
Earlier than I deleted it, I opened Settings and navigated to Map -> Storage. I had 8.17GB of free storage. After deleting it and checking relief, I had 14.4GB of free storage.
Even supposing the command runs instantly, Dwelling windows would possibly perchance well now not free space without extend, namely if you dangle gotten got upright currently old the feature. In such cases, you wish a restart to force Dwelling windows to liberate all components of the file or now not it is keeping onto.
In case you delete the file in error or desire it relief, that you just can poke this command: powercfg /hibernate on
What adjustments after disabling hibernation
Immediate Startup is eliminated, and boot habits becomes extra mature
One component you would perchance perchance soundless know is that working that command will not be at all times undoubtedly merely deleting hiberfil.sys; it moreover adjustments how Dwelling windows starts up. It reverts your pc to a extra mature startup as a result of Immediate Startup is robotically disabled.
There are advantages to disabling Immediate Startup. For instance, since I twin-boot Dwelling windows and Linux, turning off Immediate Startup ensures Dwelling windows releases components of my onerous force partition that had been locked. So I produce now not behold deleting hiberfil.sys as a huge compromise. Because Immediate Startup prevents a corpulent shutdown, it shortens boot events—so that you just lose that tempo profit if you disable hibernation.
The disagreement Immediate Startup makes depends on the hardware you dangle gotten got. Startup time on an NVMe SSD with and with out Immediate Startup is upright a couple of seconds apart, which is negligible. On older SATA SSDs or HDDs, the boot time gap is extra pronounced.
You, nonetheless, dangle the valid profit of now not carrying over inconsistent or surprising states between sessions as a result of the system goes thru a entire shutdown process.
In case you wished this space, there are a couple of extra locations to study
On most of my programs, I freed an initial chunk of space by deleting this hibernation file. But it handiest made me ordinary about various options to free space, namely on my smaller-capability devices. I attempted a couple of, and here had been the ones that gave me the most success:
Feature
What it does
What that you just can enact
pagefile.sys
Digital memory
Manually cut its size or enable Dwelling windows to retain watch over it
Map Restore
Saves system snapshots
Restrict disk utilization or delete older restore points
Supply Optimization
Stores update cache
Determined cache in Storage settings
One disagreement between hibernation and some of these various features is that they are extra actively old. So, to illustrate, I’d now not fully disable the salvage page file.
