$start = Get-Date # get all hotfixes $task1 = { Get-Hotfix } # get all scripts in your profile $task2 = { Get-Service | Where-Object Status -eq Running } # parse log file $task3 = { Get-Content -Path $env:windir\windowsupdate.log | Where-Object { $_ -like '*successfully installed*' } } # run 2 tasks in the background, and 1 in the foreground task $job1 =  Start-Job -ScriptBlock $task1 $job2 =  Start-Job -ScriptBlock $task2 $result3 = Invoke-Command -ScriptBlock $task3 # wait for the remaining tasks to complete (if not done yet) $null = Wait-Job -Job $job1, $job2 # now they are done, get the results $result1 = Receive-Job -Job $job1 $result2 = Receive-Job -Job $job2 # discard the jobs Remove-Job -Job $job1, $job2 $end = Get-Date Write-Host -ForegroundColor Red ($end - $start).TotalSeconds

$start = Get-Date # get all hotfixes $task1 = { Get-Hotfix } # get all scripts in your profile $task2 = { Get-Service | Where-Object Status -eq Running } # parse log file $task3 = { Get-Content -Path $env:windir\windowsupdate.log | Where-Object { $_ -like '*successfully installed*' } } # run them all in the foreground: $result1 = Invoke-Command -ScriptBlock $task1 $result2 = Invoke-Command -ScriptBlock $task2 $result3 = Invoke-Command -ScriptBlock $task3 $end = Get-Date Write-Host -ForegroundColor Red ($end - $start).TotalSeconds