# Managing installed nodes

Only install modules from trustworthy sources. Observe individual IT security policies.

The installation of a module fails, if it requires compiling source code on the controller or relies on external dependencies that are not installed. Please check the package and its dependencies before installing it. If the installation of a module fails, check the debug sidebar of Node-RED.

You can manage the node in your palette by:

- updating modules
- enabling or disabling nodes
- uninstalling modules

Pre-installed modules cannot be uninstalled, but only disabled. If a node is currently used in a flow, it cannot be disabled or uninstalled.

1. Prerequisite
2. The controller must be connected to the internet in order to update nodes.

1. Open Node-RED.
2. Click ☰ to open the Node-RED menu.
3. In the Node-RED menu, click Manage palette.
4. The User Settings dialogue is opened.
5. Click the Nodes tab.
6. In the search modules text box, search for the module you want to manage.
8. If you want to access individual nodes in a module, click the ˃ X nodes button.
9. Click on a button to execute the desired operation:
10. update to X.Y.Z: update the module to version X.Y.Z.
11. disable / enable: disable / enable a node
12. disable all / enable all: disable / enable all node in the module.
13. uninstall: uninstall the module.