Как изменить Power Plan в Windows 10 с помощью Powershell и вернуться после долгого сценария к исходным настройкам?

Question

Как я могу создать сценарий powershell для проверки текущего Powerplan, если он не установлен на Высокая производительность, установить его, затем запустить длинный сценарий Powershell и после запуска сценария вернуть исходный план питания обратно?

Я пришел с чем-то вроде этого, но мне кажется, что операторы -and не работают или я делаю что-то ужасно неправильное?

В данный момент я получил следующее:

$PowerSettingsorg = Get-WmiObject -Namespace root\cimv2\power -Class win32_powerplan
$PowerSettings = Get-WmiObject -Namespace root\cimv2\power -Class win32_powerplan


If ($PowerSettings.IsActive -eq $True -And $PowerSettings.ElementName -eq 'Hoge prestaties') 
{ 
write-host "++ Power Plan Settings are correct.!" 
}

Else {
$hpPlan = Get-WmiObject -Namespace root\cimv2\power -Class win32_powerplan | Where-Object { $_.ElementName -eq 'Hoge prestaties' } 
$hpPlan.Activate()
write-host "++ Power plan Settings are changed to High Performance.!"
}

<Long Script here>


If ($PowerSettingsorg.IsActive -eq 'true' -and $PowerSettingsorg.ElementName -eq 'Gebalanceerd')
{
$orgPlan = Get-WmiObject -Namespace root\cimv2\power -Class win32_powerplan | Where-Object { $_.ElementName -eq 'Gebalanceerd' } 
$orgPlan.Activate()
write-host "++ Power plan Settings have been reverted to Belanced.!"
}
Else {
write-host "++ No Power Plan settings have been reverted.!"
}

Answer 1

В Windows 10 метод Activate() на COM-объекте больше не работает, сообщая об ошибке Exception calling "Activate" : "This method is not implemented in any class ".

Для управления настройками схемы электропитания вам придется использовать PowerCfg.exe:

# fill a hashtable with power scheme guids and alias names:

# Name                                   Value
# -----                                  -----
# 381b4222-f694-41f0-9685-ff5bb260df2e   SCHEME_BALANCED  # --> Balanced
# 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c   SCHEME_MIN       # --> High performance
# a1841308-3541-4fab-bc81-f71556f20b4a   SCHEME_MAX       # --> Power saver

$powerConstants = @{}
PowerCfg.exe -ALIASES | Where-Object { $_ -match 'SCHEME_' } | ForEach-Object {
    $guid,$alias = ($_ -split '\s+', 2).Trim()
    $powerConstants[$guid] = $alias
}

# get a list of power schemes
$powerSchemes = PowerCfg.exe -LIST | Where-Object { $_ -match '^Power Scheme' } | ForEach-Object {
    $guid = $_ -replace '.*GUID:\s*([-a-f0-9]+).*', '$1'
    [PsCustomObject]@{
        Name     = $_.Trim("* ") -replace '.*\(([^)]+)\)$', '$1'          # LOCALIZED !
        Alias    = $powerConstants[$guid]
        Guid     = $guid
        IsActive = $_ -match '\*$'
    }
}

# set a variable for the desired power scheme (in this case High performance)
$desiredScheme = $powerSchemes | Where-Object { $_.Alias -eq 'SCHEME_MIN' }

# get the currently active scheme
$PowerSettingsorg = $powerSchemes | Where-Object { $_.IsActive }

if ($PowerSettingsorg.Alias -eq $desiredScheme.Alias) {
    # or by guid:   if ($PowerSettingsorg.Guid -eq $desiredScheme.Guid)
    # or localized: if ($PowerSettingsorg.Name -eq $desiredScheme.Name)
    # or:           if ($desiredScheme.IsActive)
    Write-Host "++ Power Plan Settings are correct.! ($($PowerSettingsorg.Name))"
}
else {
    # set powersettings to High Performance
    Powercfg.exe -SETACTIVE $desiredScheme.Alias  # you can also set this using the $desiredScheme.Guid
    # test if the setting has changed
    $currentPowerGuid = (Powercfg.exe -GETACTIVESCHEME) -replace '.*GUID:\s*([-a-f0-9]+).*', '$1'
    if ($currentPowerGuid -eq $desiredScheme.Guid) {
        Write-Host "++ Power plan Settings have changed to $($desiredScheme.Name).!"
    }
    else {
        # exit the script here???
        Throw "++ Power plan Settings did not change to $($desiredScheme.Name).!"
    }
}

### <Long Script here> ###


# get the current power scheme and test if it needs to be reverted
if ($currentPowerGuid -ne $PowerSettingsorg.Guid) {
    # set powersettings to the original scheme
    Powercfg.exe -SETACTIVE $PowerSettingsorg.Alias  # you can also set this using the $PowerSettingsorg.Guid
    # test if the setting has changed
    $currentPowerGuid = (Powercfg.exe -GETACTIVESCHEME) -replace '.*GUID:\s*([-a-f0-9]+).*', '$1'
    if ($currentPowerGuid -eq $PowerSettingsorg.Guid) {
        Write-Host "++ Power plan Settings have been reverted to $($PowerSettingsorg.Name).!"
    }
    else {
        # exit the script here???
        Throw "++ Power plan Settings did not revert to $($PowerSettingsorg.Name).!"
    }
}
else {
    Write-Host "++ Power Plan settings did not need to be reverted.!"
}

Answer 2

Ваша переменная $ PowerSettings содержит настройки для всех трех планов электропитания. Вам нужно проверить, какой план активен.

$PowerSettings = Get-WmiObject -Namespace root\cimv2\power -Class win32_powerplan
($PowerSettings | Where-Object { $_.IsActive }).ElementName