title: checking if windows update or any installer instace is running before starting my installer( java)
body: <p>want to make a check in my installer before starting installation if any other installation is running beforehand. Like I want to make a check if windows update or any other installer is running i'll not start my installer.</p>
  
  <p>I'm planning to check if any msiexec instance is running before hand. Is there any better approach, and will that be same for checking windows update. FYI my installer is in java</p>