Hibernation file in Windows 7 is rewritten every time I run notebook

[Windows Central Question]

Windows 7 Ultimate SP1
Notebook Samsung R560 ASS2

I've read a lot about hiberfil.sys in internet, but every article says hiberfil.sys is rewritten by system ONLY when run Hibernation mode (simply when use hibernation).
I just opened main directory and have seen in last date the file was changed time of running the notebook, so I decided not to use Hibernation mode that day and have checked again next day I am running notebook. There is a time of notebook running. Is it mean that hiberfil.sys is rewritten every time I run the system?!

 

[realwarder]

Windows 10 uses the hibernate function/file every time you shutdown your computer these days, as a method of fast boot.

Edit: I see you are referencing Windows 7. The file date is likely just refreshed. Unless you hibernate Windows 7 won't actually use the file to hibernate to.