What is the hiberfil.sys file?

I was running a trojan virus checker and it said it couldn't open the "hiberfil.sys" file. What is this file? What does it do? It's over 260MB in size on my system.

Thx,

 

It is for computer hibernation.
Don't want it?
For deletion of hiberfil.sys, you should first go to Start/settings/Control Panel-Power Options
Then on page Hibernate uncheck the checkbox "Enable hibernate support ".

 

Thanks. What's the purpose of hibernation? I turn off my PC when not using it, so doesn't sound like something I'd require.

 

It's particularly handy on a laptop, where you may be starting up and shutting down more frequently than you might on a desktop.

 

Hi, mikenowo ~

'Hibernation' is for conserving battery power on a notebook and is of no use for desktop users whereas the similar 'Stand by' is primarily for notebooks, but useful for quick return from power down rather than shut down, but typically most desktop users neither use nor require it.

Windows saves any programs or work into RAM in 'Stand By'. 'Hibernate' mode saves them to the hard drive and is designed for notebooks as a means of sucking less power from your battery, but it will take you considerably longer to get back to work. It only takes about 1 or 2 seconds tops to come back from 'Stand By' compared to a minimum of 30 seconds or more from 'Hibernate'.

If you need faster access to your computer, set it to 'Stand By' mode rather than completely shutting down. 'Hibernate' is only useful if you work while travelling with a notebook and you're worried about running out of juice, period. If you are using a desktop, 'Hibernate' holds NO relevance for you.