My help desk is attempting to deploy Update 21 to the desktop environment (450 computers). We are currently at Update 20. When they deploy the update, it fails on half of the computers. The most common suggestion is to stop Java Quick Starter in the environment, then deploy the update. We have tried many different approaches to stop Java Quick Starter, but none seem to work. We stopped the Java Quick Starter in our group policy, but it inevitably starts itself in a matter of minutes.