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Windows 7 for You: Works the Way You Want
Speed, Reliability, and Responsiveness
Power-Saving DVD Playback
With Windows 7, your PC will use less power when playing a DVD. Windows 7 requires less processing
power than previous versions of Windows and is more ef cient when it spins discs.
Wake on Wireless LAN
Having your PC go into Sleep state when idle is a good way to conserve power. But what if you need to
access your PC remotely? In Windows Vista, you can wake another PC in Sleep state only if it has a wired
network connection. In Windows 7, you can use the Wake on Wireless LAN feature to wake the PC over a
wireless network connection. Let’s say you’re using your laptop in the bedroom and want to see a photo
on the PC in the kitchen. Because both are connected to your home network, it doesn’t matter if the
kitchen PC is in Sleep state, because you can use Wake on Wireless LAN and view the photo. Similarly,
the IT administrator in your company can wake up wirelessly connected PCs to apply software updates
or perform other maintenance—and save on power costs too.
Smart Network Power
Your mobile PC may send energy to parts of your computer even when they’re not being used—such
as sending power to the network adapter when you don’t have an Ethernet cable plugged in. Windows
7 automatically turns off power to the network adapter (subject to adapters and drivers supporting this
feature) when the cable is disconnected and restores power when the cable is connected. IT professionals
can take advantage of this feature to reduce power costs.
Power Ef ciency Diagnostics
In Windows 7, we’ve updated the power con guration utility to detect problems with devices, policies,
rmware, system settings, programs, and other common items where settings can reduce power ef -
ciency. The information is presented in an easy-to-understand report. Although we designed this feature
primarily for developers and system integrators, it may also be useful to the tech-savvy.