Disable Windows XP hibernation to save disk space
Hibernate or Stand By mode ?
Your machine recovers quickly from the Stand By mode as your data is stored in RAM. If your computer is in Stand By mode the power has been cut off items such as hard drive and monitor. Computer is in a low power mode but still consuming power. This is a common mode if you are using a notebook.
Hibernation saves the status of your Windows XP session (all the programs and documents you have currently open) to the hard drive, so the Windows can automatically restore the session next time you power up your computer. The main difference is that your computer is in shut down mode and is not consuming power and your session's data is saved to your hard disk and not in RAM. Hibernation also slow down computer shut down and resume operations.
If you do not use hibernation, make sure that you do not have it enabled, which reserves disk space equal to your RAM. If you have a hidden file on the root directory of your C-drive called hiberfil.sys, hibernation is enabled.
Click Start, click Control Panel, click Power Options.
In the Power Options Properties select Hibernate tab and uncheck the Enable hibernation box.
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