Hi,
I'm Rodrigo and I'll help you.
It is the hibernation file, where the system data is stored when you set your system to hibernate.
Disabling hibernation will delete this file.
If you want to disable hibernation, open the start menu, type CMD and select "Run as administrator"
On the Command Prompt window, paste this command below and press enter
powercfg.exe /hibernate off
The command will disable hibernation.