Based on how you use your computer (meaning your computer) you might be wasting a lot of electricity if you leave it on with little or no activity for extended periods of time. Depending upon whether you rarely use the computer or you frequently use the computer or keep it always on, you can do a registry tweak to let the system know the typical role of your computer and help select the best approach to power savings. Navigate to [HKEY_CURRENT_USER\Control Panel\PowerCfg] and look for value of CurrentPowerPolicy. Following defaults are in use:Enter 0 for Home/Office Desk.Enter 1 for Portable/Laptop.Enter 2 for Presentation. Enter 3 for Always On.Enter 4 for Minimal Power Management. Enter 5 for Maximum Battery.