What is hiberfilsys used for?

Hiberfilsys file is a Windows hibernation file, used to save RAM contents when the system sleeps so that it can be restored when the system wakes up. Stores a copy of the contents of system RAM. The default size is approximately 75% of physical RAM capacity. Disabling Hiberfilsys files disables hibernation functionality. Resize Hiberfilsys files with caution as it may affect the reliability of system hibernation. Deleting the Hiberfilsys files will prevent the system from hibernating.

What are Hiberfilsys files used for?

Hiberfilsys is a hibernation file used by the Windows operating system to store a copy of the contents of system memory (RAM) to be saved while the system is hibernating. It is similar to the pagefile.sys file, but is used for hibernation rather than virtual memory.

How to use the Hiberfilsys file:

When the system enters hibernation, Windows copies the RAM contents to the Hiberfilsys file. When the system wakes up, it loads the contents of the Hiberfilsys file back into RAM, restoring the system state. This is much faster than booting the system from scratch and won't lose any unsaved data.

Location and size of the Hiberfilsys files:

The Hiberfilsys files are typically located in the root directory of the Windows installation drive. Its default size is approximately 75% of physical RAM capacity. For example, if your computer has 16GB of RAM, the Hiberfilsys file will be approximately 12GB.

Disable or adjust Hiberfilsys files:

You can disable Hiberfilsys files to free up disk space. However, this will mean that the system cannot be hibernated. You can also resize Hiberfilsys files to reduce or increase their disk space consumption.

Tip:

• Disabling the Hiberfilsys file will disable hibernation functionality.
• Adjust the size of Hiberfilsys files with caution as it may affect the reliability of system hibernation.
• Deleting Hiberfilsys files will prevent the system from hibernating.

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