![]() ![]() I don't know enough about powercfg to provide a full tutorial. That is, it can configure any power management features you can configure in Windows 7, or via Group Policy in managed environments, but it also provides additional unique functionality of its own as well. What's most interesting about powercfg is that it provides a superset of the power management functionality that's available in the Windows 7 UI. It first appeared in Windows XP and has soldiered on in subsequent Windows versions, including Windows 7. ![]() Interestingly, Microsoft provides a command line tool, powercfg.exe, for this very purpose. If it doesn't find any issues, or if the changes it makes aren't cutting it, you'll need to pry a bit deeper. It's basic, but it can find a few obvious issues. To find this Power troubleshooting wizard, open Action Center, click Troubleshooting, and then search for power in the search box. Windows 7 does have one built-in GUI tool for detecting and correcting power management issues: The new Windows Troubleshooting infrastructure, available via Action Center, can examine your power management profile and find out which settings are not optimally configured. And it's usually hard to know where to look when you're troubleshooting such a problem. Lenovo, in particular, has been very aggressive and successful in this area.īut the basic problem with power management remains: While a stock Windows 7 PC will startup, shutdown, sleep, and resume quite speedily, applications and drivers you install over time can silently change settings and impact the reliability and performance of your PC's power management capabilities as a result. PC makers, too, often raise the stakes with their own improvements to the core Windows power management features. Windows 7 includes a full complement of power management features, including low-level improvements to core power management technologies and high level user interfaces like the system notification battery meter icon, Power Options control panel, and a newly simplified set of power management plans. Get a Free Power Efficiency Report for Your PC ![]()
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