The AC fields specify the
operating time when the system is on standard line current, while the DC fields specify the operating
time when the system is on battery. Supply a GUID or subGUID to obtain particulars
about a specific power scheme as shown in Figure 12.8. In this case, the output shows the High
Performance power scheme. To access this scheme, you type PowerCfg /Q 8c5e7fda-e8bf-
4a96-9a85-a6e23a8c635c and press Enter. However, let??™s say that you??™re only interested in the
hard drive settings for the High Performance power scheme. In this case, you??™d type PowerCfg
/Q 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 0012ee47-9041-4b5d-9b77-535fba8b1442
and press Enter. The first GUID is for the High Performance power scheme and the second
GUID is for the Hard Drive subGUID.
Figure 12.8
Use the power scheme
GUIDs and subGUIDs
to access information
about them.
/DELETE GUID, /D GUID Deletes the power scheme with the specified GUID.
/SETACTIVE GUID, /S GUID Changes the active power scheme to the specified power scheme.
/CHANGE GUID settings, /X GUID settings Modifies the settings for the specified power
scheme. Changing a setting value to 0 disables that feature.
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