For a lot of PCs (especially laptops and tablets), your PC goes to sleep when you close your lid or press the power button. To make your PC sleep: Open power options: For Windows 10, select Start, then select Settings System Power & sleep Additional power settings.

1. Windows 7 Allow Hybrid Sleep Center
2. Windows 7 Allow Hybrid Sleep Missing
3. Win7 Allow Hybrid Sleep

how can I turn off 'allow hybrid sleep' in advanced power setting? by c#by manually: power options -> change Plan Settings -> change advanced power setting-> Sleep-> 'Allow hybrid sleep' -> plugged in: OFF

sari ksari k

2 Answers

If you are targeting Windows 7/2008 Server then you can use WMI and the Win32_PowerSetting class. Below is code that does that. Make sure to add an assembly reference and using directive to System.Management.

Windows 7 Allow Hybrid Sleep Center

Chris HaasChris Haas

Using procmon, I managed to work out that the following registry key is responsible for it on my machine.

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlPowerPowerSettings238C9FA8-0AAD-41ED-83F4-97BE242C8F2094ac6d29-73ce-41a6-809f-6363ba21b47e

You'll probably have to do some research on your machine to see how it works for you.

You can also call on the powercfg utility to do this. Each power setting is identified by three things:

1. GUID of power profile
2. GUID of profile subgroup
3. GUID of setting

You can use powercfg -QUERY to produce a full list of values.

Once you've got the GUID of the profile you want to edit, the GUID of the subgroup (in this case the Sleep subgroup) and the GUID of the setting (Allow Hybrid Sleep) you can use either powercfg -SETACVALUEINDEX for plugged in or powercfg -SETDCVALUEINDEX for on battery to set the value.

Windows 7 Allow Hybrid Sleep Missing

In my case (Win7 Ultimate x64) you can turn it off using:
powercfg -SETACVALUEINDEX 381b4222-f694-41f0-9685-ff5bb260df2e 238c9fa8-0aad-41ed-83f4-97be242c8f20 94ac6d29-73ce-41a6-809f-6363ba21b47e 1

This translates to the AcSettingIndex value in:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlPowerPowerSettings238C9FA8-0AAD-41ED-83F4-97BE242C8F2094AC6D29-73CE-41A6-809F-6363BA21B47EDefaultPowerSchemeValues381b4222-f694-41f0-9685-ff5bb260df2e

Polynomial

Win7 Allow Hybrid Sleep

Polynomial

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