winutil/functions/public/Invoke-WPFUltimatePerformance.ps1

Function Invoke-WPFUltimatePerformance {
    <#

    .SYNOPSIS
        Creates or removes the Ultimate Performance power scheme

    .PARAMETER State
        Indicates whether to enable or disable the Ultimate Performance power scheme

    #>
    param($State)
    try {
        # Check if Ultimate Performance plan is installed
        $ultimatePlan = powercfg -list | Select-String -Pattern "Ultimate Performance"
        if($state -eq "Enable") {
            if ($ultimatePlan) {
                Write-Host "Ultimate Performance plan is already installed."
            } else {
                Write-Host "Installing Ultimate Performance plan..."
                powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61
                Write-Host "> Ultimate Performance plan installed."
            }

            # Set the Ultimate Performance plan as active
            $ultimatePlanGUID = (powercfg -list | Select-String -Pattern "Ultimate Performance").Line.Split()[3]
            powercfg -setactive $ultimatePlanGUID

            Write-Host "Ultimate Performance plan is now active."


        }
        elseif($state -eq "Disable") {
            if ($ultimatePlan) {
                # Extract the GUID of the Ultimate Performance plan
                $ultimatePlanGUID = $ultimatePlan.Line.Split()[3]

                # Set a different power plan as active before deleting the Ultimate Performance plan
                $balancedPlanGUID = (powercfg -list | Select-String -Pattern "Balanced").Line.Split()[3]
                powercfg -setactive $balancedPlanGUID

                # Delete the Ultimate Performance plan
                powercfg -delete $ultimatePlanGUID

                Write-Host "Ultimate Performance plan has been uninstalled."
                Write-Host "> Balanced plan is now active."
            } else {
                Write-Host "Ultimate Performance plan is not installed."
            }
        }
    } catch {
        Write-Warning $psitem.Exception.Message
    }
}