Windows Advanced Power Options Explained


  • Sleep After. Allows users to save battery life or energy by putting a notebook in a low-power state after a set amount of time. Waking from sleep should only take about a second, opening right where you left off. The amount of power a notebook uses while sleeping depends on several factors, including the manufacturer. The draw can be as little as 5 to 15 watts.
  • Allow Hybrid Sleep. This is a function more useful in desktops than in notebooks, because it’s designed to protect a session from sudden power loss. Hybrid sleep works by writing a hibernation file when your computer enters a sleep state, allowing for a fast wake time. If you lose power completely and suddenly, which is less likely with a laptop, the system uses the stored file to wake from hibernation, restoring your system’s state. Enabling it won’t impact your notebook negatively, though it will take up some hard drive space.
  • Hibernate. Saves power by creating a hibernation file on the hard disk and shutting the computer down. The power draw here is extremely low, with many notebooks able to last for weeks without being plugged in. However, waking from hibernation takes longer than sleep—sometimes as long as it takes for your notebook to boot. As with sleep, the user’s session is saved and ready to go. For moderate battery savings, use hibernation if you won’t need your laptop for two hours or more. For extreme savings, hibernate after 45 to 60 minutes.
  • Allow Wake Timers. Applications or utilities programmed to run or perform tasks at specific times—such as Windows Update—can wake a notebook from sleep if Wake Timers are allowed. When running unplugged, disable this function to keep your notebook from draining battery life.
Advanced Power Options Explained

Page 1: Hard Disk, Desktop Background Settings, and Wireless Adapter Settings

Page 2: Sleep and Hibernation Settings

Page 3: USB Settings and Processor Power Management

Page 4: Display and Multimedia Settings

Page 5: Battery Settings

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  2. Dany Says:

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  3. RS Says:

    Thanks a lot, very helpful article.

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