An installed bundle can be started/stopped by using the options of the Frameworks view.
Tip: By selecting several bundles in the framework's tree, you can start/stop all of them with a single operation.
To start a bundle, in the Frameworks view select the bundle in the framework's tree, right-click it and use Start.
To stop an active bundle, in the Frameworks view select the bundle in the framework's tree, right-click it and use Stop.
Note: You are not allowed to stop certain bundles providing vital system functionality - stopping some of them might lead to loss of important OSGi framework capabilities.
OSGi Management Overview
OSGi Frameworke Tree
Installing and Uninstalling a Bundle
Updating a Bundle
Frameworks View Tree Icons
Frameworks View Menus and Toolbar