By default, the hibernation in Windows 2008 enabled. As well, the Hibernate file (C:\Hiberfil.sys, hidden OS file) takes around more than 1GB. Most of us., not going to do hibernate a server. So, I feel that it is not required. We can save some disk space as well. I checked with Power Settings on Control Panel to disable the hibernate and delete the file. Unfortunately, Hibernate is disabled state in all power settings (Windows 2008 having 3 diffrent power options). Still, I was unable to delete. Found a way to delete it. Enter into command prompt by using RUN. Then type the following command to disable the hibernate. POWERCFG -H OFF Now, the hiberfil.sys is deleted. If you change your mind turn on the hibernate back: POWERCFG -H ON