Hi David Skillman,
Welcome to Microsoft Q&A!
I hope it's safe to assume that the Hibernation file you mentioned is hiberfil.sys. Windows does not support manually deleting, so the only supported way is to disable Hibernation feature. Please note that it means:
- Hibernate and Fast Startup won't work anymore.
- Sleep and normal shutdown continue to work normally.
The Q&A Assist's provided steps using powercfg /h off are accurate, supported in Windows to turn off Hibernation. Once the feature is disabled, Windows will automatically remove this file and frees the space.
If your storage is running low and even removing Hibernation doesn't help, let me know and we will look into other options to give your system more space!
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