I don’t have a Laptop, but for some reason (even in XP) Microsoft seem to think we all have one, and accordingly, set our Power Options to match. Follow this easy guide to find out how to set your Desktop PC to some sort of normality. There are three levels of preset power management in Vista … Balanced, Power Saver and High Performance … You can find further reading in this Microsoft Article. I personally recommend that you actually customise the settings other than relying on any of the presets. None of them is exactly perfect for most systems.
To customise these settings to your own needs, follow these steps.
Open power options by simply typing Power Options in the search bar from the start button. Or, go the long way and, click the Start button / Control Panel / Hardware & Sound / Power Options. 😉