Actual size depends on Windows version and power settings.

Common reasons for disabling the file include:

This is the most direct method and works across all modern versions of Windows (7, 8, 10, and 11).

For users utilizing with limited storage capacity, or users who do not utilize the Hibernation feature, disabling hiberfil.sys is a safe and effective optimization. The trade-off is the loss of the Hibernation feature and Fast Startup capability. Systems that rely on Hibernation for transport (e.g., laptops frequently carried in bags without shutting down) should retain the feature.