When hibernation is enabled in Windows 10, the operating system creates a file called hiberfil.sys in the root of your C: Drive. Hiberfil.sys that stores the contents of memory (RAM) when you hibernate your PC. When you resume from hibernation, Windows reads this file again and transfers the contents to memory. Because the memory capabilities of modern PCs are still increasing, the hibernation files take up considerable disk space. Here's how you can compress the hibernation file and reduce its size in Windows 10.
Although you can disable hibernation and use the sleep state or always keep your PC powered on, it is not an effective way to power laptops. In addition, features such as Quick Start Windows 10 rely on hibernation being allowed to start the fastest operating system. If you disable hibernation, you lose the benefits of Quick Start
To solve the problem of increased RAM capabilities, Microsoft added the ability to compress the hibernation file in Windows 10. This means that the C :. Hiberfil. sys does not take as much space as your RAM capacity. It can take a lot less disk space, even 50% of your installed RAM capacity. This is a fantastic improvements Microsoft made in Windows 7 and later, but it is disabled by default. Let's see how light it.
How to hibernation file size (hiberfil.sys) in Windows 10
- Open an elevated command prompt.
- Type the following command:
size powercfg hibernate NN
where NN is the desired size hiberfil.sys percentage of total memory
To. For example, if you have 8 GB of RAM installed and you want to set the size of the hibernation file to 60% to save disk space. Then simply use the following command:powercfg hibernate size 60
This will give the hibernation file to 60% of 8GB of RAM, which means that 4.8 Go. There you save 3.2 GB of disk space.
The size you specify can not be less than 50.
If you have disabled hibernation, the powercfg bet size Hibernate switch automatically hibernate
You can see the size of the C :. Hiberfile.sys file in Explorer in gigabytes (GB) by selecting or by opening its properties. Normally this system file is hidden so you may need to enable the setting to display hidden files, as mentioned in Step 2 of this article.
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