# Manage running machines

This page provides information about how to manage machines running for your notebooks.

## Manage the machine for the currently opened notebook

Go to `Main menu | Run` or open the command palette by pressing `Ctrl+Shift+A` (Windows), `⇧ ⌘ A` (macOS). You have the following options:

| Action | Description |
| --- | --- |
| Start machine | Restarts the machine. This may take some time as it restarts all required processes and installs your custom libraries. |
| Stop machine | Stops all processes on the machine. Most often used when:     * The kernel keeps crashing.    * You are not planning to run any code or use smart coding assistance. You want to work with your Markdown cells and save computation time.     > **Tip:** > If a machine becomes unresponsive during shutdown, a notification popup appears. To immediately terminate the frozen machine, click Force stop in the popup. > > > > Force-stopping a machine may result in file corruption or data loss.    |
| Change machine | Used to switch to another machine. Your options are: Basic, Large, and GPU.  |
| Background computation | Keeps the computation running after the tab is closed. Find more details in the Computation modes section.  |

Procedure: Manage all your running machines

You can always manage all your running machines from both the Home page and the editor. Use the Running machines menu.

1. Open the Running machines menu:

* On the Home page, select ![Computer](https://resources.jetbrains.com.cn/help/img/datalore/2026.3/computer.svg)Running machines from the left-hand sidebar

* In the editor, click the avatar in the upper right corner and select Running machines from the menu.

2. To stop a machine, click the Stop button for the respective list item. After that, the stopped machine is removed from the list.

![Running machines menu](https://resources.jetbrains.com.cn/help/img/datalore/2026.3/running_machines.png)

> **Note:**
> When you open a notebook with a stopped machine, you can see a notification in the lower right corner of the editor with the Restart machine button.

## Keywords

running computations, manage computations, stop computations