Process 无法停止进程

下面的ps1完全符合我的要求，只是我不知道如何终止进程。如有任何建议，将不胜感激

while($true) {

$path = "C:\Users\my\Desktop\TimeSheet.accdb"
$ProcessInfo = get-process | where-object {$_.Path -eq 
$path }| select CommandLine | Out-String -width 200


 if ($processInfo -NotLike "C:\Users\my\Desktop\TimeSheet.accdb") {        
    Start-Process -filepath "C:\Users\my\Desktop\TimeSheet.accdb"
 }
 else {
   Write-Host ' still running ' 
 }
 Start-Sleep -Seconds 60
}