Yes, you can stop Oozie and Hive, also HBase and Ranger if they are running. Then, depending on how much RAM do you have on your laptop, you can check and reduce Base Memory in your VM's Settings-->System. The default for Sandbox on Mac is 8G, not sure about Windows. If you are just after spark-shell you can also stop Ambari (ambari-server and ambari-agent). ... View more