restart-service -name ccmexec -force
$maxwait = 120  #2 mins
$pause = 5
$timer = 0
$exitcode = 1 #default = fail
while ($timer -lt $maxwait) {
    start-sleep -Seconds $pause    
    $check = (Get-Service -Name CcmExec).Status
    write-host $check
    if($check -eq "Running") {
        # Machine policy retrieval & Evaluation Cycle
        Invoke-WMIMethod -Namespace root\ccm -Class SMS_CLIENT -Name TriggerSchedule "{00000000-0000-0000-0000-000000000021}"
        # Software updates deployment evaluation cycle
        Invoke-WMIMethod -Namespace root\ccm -Class SMS_CLIENT -Name TriggerSchedule "{00000000-0000-0000-0000-000000000114}"
        # Hardware inventory cycle
        Invoke-WMIMethod -Namespace root\ccm -Class SMS_CLIENT -Name TriggerSchedule "{00000000-0000-0000-0000-000000000001}"
        # Discovery Data Collection Cycle
        Invoke-WMIMethod -Namespace root\ccm -Class SMS_CLIENT -Name TriggerSchedule "{00000000-0000-0000-0000-000000000003}"
        $exitcode = 0
        $timer = $maxwait
    } else {
        $timer += $pause
    }
}
exit $exitcode