Windows

What Is Hiberfil Sys Windows 8.1

Are you curious about the mysterious file known as hiberfil.sys in Windows 8.1? Well, you're not alone. This file may seem perplexing at first, but it plays a crucial role in the operating system's features and functionality. So, let's delve into the world of hiberfil.sys and uncover its secrets.

Hiberfil.sys is a system file found in Windows 8.1 that is responsible for enabling the hibernation feature on your computer. When you put your computer into hibernation, it saves the current state of your open programs and documents onto your hard drive, allowing you to power off your computer while preserving your work. This file is essential for quick startup and is often quite large in size, taking up valuable disk space. So, if you're running low on storage, managing hiberfil.sys can be beneficial. By adjusting the hibernation settings or disabling it altogether, you can reclaim disk space and optimize your computer's performance.



What Is Hiberfil Sys Windows 8.1

What is Hiberfil Sys Windows 8.1?

Hiberfil.sys is a system file in the Windows operating system, including Windows 8.1. It is responsible for managing the hibernation feature of the system. When you put your Windows 8.1 computer into hibernation mode, the contents of the RAM (Random Access Memory) are saved to this file, allowing the computer to power off without losing any unsaved work. The hiberfil.sys file plays a crucial role in the hibernation process and can take up a significant amount of disk space. Understanding hiberfil.sys and its function is essential for Windows 8.1 users.

How Does Hiberfil.sys Work in Windows 8.1?

When you choose the hibernation option in Windows 8.1, the operating system saves the current state of your computer, including all open files and running processes, to the hiberfil.sys file on your hard drive. This file is typically located in the root directory of the system drive (usually C:). By doing so, the computer can completely power off while preserving the current session.

When you power on your Windows 8.1 computer after it has been hibernated, the operating system reads the hiberfil.sys file and restores the system to its previous state, allowing you to resume your work where you left off. This is different from the sleep or standby mode, where the computer uses a small amount of power to keep the system data in memory.

It's worth noting that Windows 8.1 requires a significant amount of disk space to store the hiberfil.sys file. The size of the file is approximately equal to the amount of RAM installed on your computer. For example, if your computer has 8 GB of RAM, the hiberfil.sys file will be around 8 GB in size. This is something to consider, especially if you are low on disk space.

Can Hiberfil.sys Be Deleted in Windows 8.1?

Deleting the hiberfil.sys file is not recommended, especially if you frequently use the hibernation feature in Windows 8.1. If you delete the file, you will not be able to hibernate your computer. Windows will recreate the file when you enable hibernation again. However, if you never use hibernation and want to free up disk space, you can disable the feature.

To disable hibernation and remove the hiberfil.sys file in Windows 8.1, you can use the Command Prompt with administrative privileges. Open the Command Prompt and type powercfg -h off. Press Enter, and hibernation will be disabled. The hiberfil.sys file will be deleted, freeing up disk space. Remember, though, that you will no longer be able to use the hibernation feature.

If you ever decide to re-enable hibernation, you can use the same Command Prompt command, but replace "off" with "on". This will recreate the hiberfil.sys file and enable the hibernation feature.

Does Hiberfil.sys Affect System Performance?

The hiberfil.sys file itself does not directly affect the performance of your Windows 8.1 computer. However, since it can take up a significant amount of disk space, having a large hiberfil.sys file can lead to reduced free space on your hard drive. If your system drive becomes too full, it can slow down performance as there is less room for temporary files and virtual memory.

In general, it is recommended to have at least 15% of your total hard drive space available to ensure optimal system performance. If you find that the hiberfil.sys file is using a substantial portion of your disk space and impacting performance, you can consider disabling hibernation and reclaiming that space as mentioned earlier.

It's important to note that disabling hibernation will not affect the sleep or standby mode, and you will still be able to use those features to save power while keeping your system in a low power state.

Exploring the Benefits and Considerations of Hiberfil.sys in Windows 8.1

Hiberfil.sys in Windows 8.1 offers several benefits and considerations that users should be aware of. Understanding these aspects can help you make informed decisions regarding the usage of hibernation and managing disk space efficiently.

Benefits of Using Hiberfil.sys in Windows 8.1

  • Quick system startup: Hibernation allows you to quickly resume your work from where you left off, eliminating the need to wait for the system to boot up and reopen files and applications.
  • Data persistence: Hibernation saves all open files and running processes, ensuring that you do not lose any unsaved work or progress.
  • Power efficiency: Hibernation allows you to power off your computer completely while preserving the system state, saving energy compared to leaving the computer in an idle state.
  • Flexibility: Hibernation can be used as an alternative to sleep or standby mode when you need to keep your session intact for an extended period without using power.

Considerations When Using Hiberfil.sys in Windows 8.1

  • Disk space usage: The hiberfil.sys file can occupy a significant amount of disk space, so it is important to ensure that you have enough free space on your system drive.
  • RAM limitations: The size of the hiberfil.sys file is directly proportional to the amount of RAM installed on your computer. If you have limited RAM, the file size may not be a major concern.
  • Disabling hibernation: If you do not use the hibernation feature or need to free up disk space, you can consider disabling hibernation and deleting the hiberfil.sys file.

By understanding the benefits and considerations associated with hiberfil.sys in Windows 8.1, you can determine the best approach for managing the hibernation feature based on your specific needs and available resources.


What Is Hiberfil Sys Windows 8.1

Understanding Hiberfil Sys in Windows 8.1

In Windows 8.1, the hiberfil.sys file is an essential system file that is used to store the contents of the computer's RAM when it enters hibernation mode. Hibernation is a power-saving feature that allows you to resume your work exactly where you left off without having to restart your computer.

The hiberfil.sys file is located in the root directory of the system drive and is typically very large in size, equal to the amount of installed RAM on your computer. It is a hidden system file, meaning that it is not visible by default.

This System file is critical for the hibernation function to work properly on your Windows 8.1 computer. If you delete or disable the hiberfil.sys file, you will not be able to use hibernation mode, and your computer will lose the ability to save and restore the current session.

It is not recommended to manually delete or modify the hiberfil.sys file unless you are an advanced user with a specific reason to do so. However, if you wish to disable hibernation mode, you can use the Command Prompt with admin privileges and run the command "powercfg /hibernate off".


Key Takeaways for "What Is Hiberfil Sys Windows 8.1"

  • Hiberfil.sys is a system file in Windows 8.1 that is responsible for hibernation functionality.
  • It is located in the root directory of the system drive and is hidden by default.
  • When the computer goes into hibernation mode, the contents of RAM are saved to the hiberfil.sys file.
  • This allows the computer to resume exactly where it left off when powered back on.
  • The hiberfil.sys file is essential for the hibernation feature in Windows 8.1, but it can take up a significant amount of disk space.

Frequently Asked Questions

Here are some commonly asked questions about hiberfil.sys in Windows 8.1:

1. What is hiberfil.sys in Windows 8.1?

The hiberfil.sys is a system file in Windows 8.1 that is used to store the current state of the operating system when it enters hibernation mode. It is responsible for saving all the data in the RAM onto the hard drive, allowing the system to quickly resume its previous state when waking up from hibernation.

By default, hiberfil.sys is located in the root directory of the system drive (usually C:). It is a hidden system file and can only be accessed by the administrator account.

2. Can I delete the hiberfil.sys file?

It is not recommended to delete the hiberfil.sys file in Windows 8.1. Hibernation is a useful feature that allows you to save your work and power off your system, while still being able to resume your work exactly where you left off. Deleting the hiberfil.sys file will disable the hibernation feature and prevent your system from entering hibernation mode.

However, if you do not use hibernation and want to free up some disk space, you can disable hibernation and remove the hiberfil.sys file. You can do this by opening a Command Prompt as administrator and running the command "powercfg -h off". This will disable hibernation and delete the hiberfil.sys file.

3. How can I reduce the size of the hiberfil.sys file?

The size of the hiberfil.sys file is directly related to the amount of RAM installed on your system. To reduce the size of the hiberfil.sys file, you can lower the amount of RAM used for hibernation.

You can do this by opening a Command Prompt as administrator and running the command "powercfg -h -size [percentage]". Replace "[percentage]" with a value between 1 and 100, representing the percentage of the total RAM you want to allocate for hibernation. For example, to allocate 50% of the total RAM, you would run the command "powercfg -h -size 50". After running the command, restart your system for the changes to take effect.

4. Can I move the hiberfil.sys file to a different location?

No, you cannot move the hiberfil.sys file to a different location in Windows 8.1. The file is always located in the root directory of the system drive (usually C:). It is a system file and changing its location can cause system instability or prevent the hibernation feature from working properly.

5. How can I enable hibernation and restore the hiberfil.sys file?

If hibernation is disabled, you can enable it and restore the hiberfil.sys file by opening a Command Prompt as administrator and running the command "powercfg -h on". This will re-enable hibernation and recreate the hiberfil.sys file.

After running the command, you can check if hibernation is enabled by going to the Power Options in the Control Panel. Under the "Sleep" options, you should see the "Hibernate" option available. You can also check if the hiberfil.sys file has been recreated in the root directory of the system drive.



In summary, the hiberfil.sys file is a system file in Windows 8.1 that is used to store the contents of your computer's RAM when it goes into hibernation mode. This file allows your computer to quickly resume from hibernation by loading the saved data back into memory. It is a hidden file and typically stored in the root directory of your system drive.

Hiberfil.sys is necessary for the proper functioning of the hibernation feature in Windows 8.1. It requires a significant amount of disk space, approximately the same size as your computer's RAM. If you find that you need more disk space, you have the option to disable hibernation and delete the hiberfil.sys file. Keep in mind, however, that doing so will remove the ability to use the hibernation feature.


Recent Post