Windows 10 POWERCFG /ENERGY doesn't work anymore

[sba923]

On one of my computers POWERCFG /ENERGY doesn't function (anymore).


It returns immediately and doesn't create the expected output file.


I have created a PowerShell test script that helps reproducing the issue.


Here's the script:

#requires -RunAsAdministrator
$starttime = (Get-Date)
$outputfile = Join-Path -Path $env:TEMP -ChildPath "pcet.html"
& powercfg /energy /duration 30 /output $outputfile
$rc = $LASTEXITCODE
Write-Host("POWERCFG /ENERGY returned with exit code {0} in {1} seconds" -f $rc, ((Get-Date) - $starttime).TotalSeconds)
if (Test-Path -LiteralPath $outputfile)
{
Write-Host -ForegroundColor Green ("Output file '{0}' WAS created" -f $outputfile)
Remove-Item -Force -LiteralPath $outputfile
}
else
{
Write-Host -ForegroundColor Red ("Output file '{0}' was NOT created" -f $outputfile)
}


Here's the output on a computer without the issue:





and here's the output on the offending computer:





Both computers are running Windows 10 build 17763.503 (latest RS5/1809 build).



Where do I go from here?

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