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# Quick Pro Tip: Running low on disk space? Delete your hiberfil.sys
- URL: https://blog.tsd.digital/quick-pro-tip-running-low-on-disk-space-delete-your-hiberfilsys/
- Published: 2012-05-18T13:03:48.000Z
- Updated: 2012-05-18T13:03:48.000Z
- Author: Tim Gaunt
- Tags: Software, Windows, The Site Doctor, #Import 2025-04-01 05:37

I freed up about 10GB of space on my C drive this afternoon by simply disabling Hibernation:

**Before**

![QuickFreeUpSpaceTip-Before](https://storage.ghost.io/c/64/5b/645b11c2-b436-444c-a523-58dca4ca7bd8/content/images/tim/images/Quick-Pro-Tip-Running-low-on-diskspa.sys_D166/QuickFreeUpSpaceTip-Before_thumb.png)

**After**

![QuickFreeUpSpaceTip-After](https://storage.ghost.io/c/64/5b/645b11c2-b436-444c-a523-58dca4ca7bd8/content/images/tim/images/Quick-Pro-Tip-Running-low-on-diskspa.sys_D166/QuickFreeUpSpaceTip-After_thumb.png)

Step 1: Open Command Prompt as an Administrator

Step 2: Type **powercfg -h off** and hit enter -if nothing else is output then you've done it right:

![QuickFreeUpSpaceTip-CMD](https://storage.ghost.io/c/64/5b/645b11c2-b436-444c-a523-58dca4ca7bd8/content/images/tim/images/Quick-Pro-Tip-Running-low-on-diskspa.sys_D166/QuickFreeUpSpaceTip-CMD_thumb.png)

Step 3: Marvel at your additional disk space

That's it.

The hiberfil.sys file is a (large) file which stores the the current state (memory) of your computer. You can't just hit delete on it as it's always in use but you can free up a lot of space quickly by disabling Hibernate (you might as well if you never use it):