title: How to Lock(Block) an android application from starting / How to stop an android application (service) from starting at boot
body: <p>I would like to know if there is a way to lock (prevent) an application from starting. </p>
  
  <p>And i also would like to know if there is a way to prevent a service(application) from starting at boot of the device</p>
  
  <p>...i would like to know because i would like to create an anti-malware app.</p>