Allow wake timers Windows 7/Vista

Question

I need to allow WakeTimers (computer wake up from sleep/hibernation) for all power plans set on plugged in to Enabled.

Answer 1

I wrote this powershell script to Enable or Disable wake timers on all current power schemes. On the second last line "POWERCFG -setacvalueindex $xAll $xSubGuid $zz 1" - the 1 means enable. Just change this to 0 to disable.

CLS
#Capture Current Active Power Scheme
$orgScheme = POWERCFG -GETACTIVESCHEME  
$yOrg = $orgScheme -split "\s+"
$xOrg = $yOrg[3]
Write-host Original Scheme = $xOrg
Echo __________________________________
Echo " "

$allScheme = POWERCFG /L
#Echo $allScheme

foreach ($line in $allScheme)
  {
  if ($line.Length -gt 40)
        {
        if ($line.substring(0,5) -eq "Power")
            {
            $yAll = $line -split "\s+"
            $xAll = $yAll[3]
            write-host $xAll
            Powercfg -S $xAll

            $pScheme = POWERCFG /Q
            foreach ($line in $pScheme)
                {
                $yy = $line -split "\s+"
                $xx = $yy[5]+$yy[6]+$yy[7]+$yy[8]
                $zz = $yy[4]
                $xSubGroup = $yy[1]

                If($xSubGroup -eq "SubGroup")
                    {
                    $xSubGuid = $yy[3]
                    }

                If($xx -eq "(allowwaketimers)")
                     {
                      write-host Power Scheme Guid = $xAll
                      write-host Subgroup Guid = $xSubGuid
                      write-host WakeUp Guid = $zz
                      Write-host POWERCFG -setacvalueindex $x $xSubGuid $zz 1
                      Echo " "
                      break
                     }
                }
            POWERCFG -setacvalueindex $xAll $xSubGuid $zz 1
            }
        }
  }
Powercfg -S $xOrg

Enjoy.