# 4. Windows Powershell

You can open both Windows PowerShell and Command Prompt from the Windows menu:

1. Press the **Windows** key or click the Windows icon in the bottom-left corner.
2. Type**PowerShell** or **Command Prompt**, and press **Enter** to open the respective terminal.

Verify that Docker is installed by typing this in the **PowerShell** or **Command Prompt** terminal:

Copy

```
docker --version
```

You should see an output that indicates docker is available on your system:

Copy

```
Docker version 27.0.3, build 7d4bcd8
```


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cerebrum.dev/cerebrum/cerebrum-node-setup-and-registration/4.-windows-powershell.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.