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Windows 7 Power Management

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As energy conservation and consumption loom ever larger in assessing true costs of computer ownership, and users seek to cut those costs, Windows power management tools have gained considerable importance. Windows 7 makes some nice additions and enhancements to power management features already present in Windows Vista (and to some extent in Windows XP as well).

Reduced Power Consumption
By paying closer attention to Windows activity levels, Windows 7 can implement sleep or hibernation features in modern PCs, and even shut down system components that aren’t in use. Most users can turn these capabilities to best advantage on battery-powered PCs, where conserving energy translates directly into longer battery life. But even for computers plugged into a wall socket, reduced power consumption translates into lower overall costs for electricity.

Improved Power Plans
The Power Options item in Control Panel remains the primary means of access to power plans and their behavior in Windows 7, just as it was in Vista and XP. Users who spend some time investigating this utility will find only two basic plans (Balanced and Power User) rather than the three from earlier versions (Balanced, Power Saver, and High Performance in Vista, and six or more Power Schemes in XP) but many more options and more nuanced controls in the Advanced Settings window. Click Start, Control Panel, System and Security, Power Options, Change Plan Settings, Change Advanced Power Settings. There’s a new Desktop Background Settings (to enable/disable rotating desktop backgrounds) entry, many more Sleep options, and even a System Cooling Policy option in Processor Power Management. Some early testing indicates that Windows 7 can extend battery life by as much as 10% as compared to Vista on identical hardware.

Source of Information : QUE Microsoft Windows in Depth

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