Q. How can I enable core parking in my system without changing my power scheme?

A. You can allow your Windows 7 or Windows Server 2008 R2 system to use core parking when it isn't busy irrespective of your power scheme setting by using the command

powercfg -setacvalueindex scheme_current sub_processor bc5038f7-23e0-4960-96da-33abaf5935ec 

in the command is to the percentage of cores to keep active. For example, if you use the command

powercfg -setacvalueindex scheme_current sub_processor bc5038f7-23e0-4960-96da-33abaf5935ec 25

on a four-core system, one of your cores will never be parked and the rest will be parked when your system isn't busy.

You can query the values set by the above command by using the command

powercfg -qh scheme_current sub_processor

This command will return the percentage of your cores that will never park, in addition to other power related settings.

Related Reading:

• Q. How do I enable Core Parking in Windows 7 and Windows Server 2008 R2?
• Q. Is there a way to turn off my display from a desktop shortcut?
• Q. If I want to enable clustering on Hyper-V guest virtual machines (VMs), do I also have to enable clustering on the Hyper-V hosts?
• Time to Get Green with "Bluejuice"

Check out hundreds more useful Q&As like this in John Savill's FAQ for Windows. Also, watch instructional videos made by John at ITTV.net.