---
title: "Before You Begin"
description: "Before you start unattended installation, make sure that you perform the following steps: Download the Veeam ONE installation image from the Veeam website."
canonical: "https://helpcenter.veeam.com/docs/one/userguide/silent_mode_prerequisites.html"
breadcrumb: "User Guide > Installing Veeam ONE > Installing Veeam ONE in Unattended Mode > Before You Begin"
dateModified: "2026-10-23"
---

# Before You Begin

Before you start unattended installation, make sure that you perform the following steps:

1. Download the Veeam ONE installation image from the Veeam website. You can burn the downloaded image to a CD/DVD or mount the image to the target machine using disk image emulation software.
2. Check the system requirements. For details, see [System Requirements](system_requirements.md).
3. Log on to the target machine under the account that has the Local Administrator permissions on the machine. For details, see [Permissions](permissions.md).
4. Obtain a license file. If you do not specify a path to the license file during installation, Veeam ONE will operate in the Community Edition mode.
5. Define required and optional parameters in either the `VoAnswerFile_install.xml` or `VoClientAnswerFile_install.xml` file found in the `\Setup\Silent\AnswerFiles` folder of the Veeam ONE installation image:

   - To install all Veeam ONE components use `VoAnswerFile_install.xml` located in the `/Setup/Silent/AnswerFiles/VO` folder. 

     To upgrade or uninstall all Veeam ONE components, use the `_uninstall.xml` and `_upgrade.xml` files located in the same folder.

   - To install Veeam ONE Client use `VoClientAnswerFile_install.xml` located in the `/Setup/Silent/AnswerFiles/VOClient` folder. 

     To upgrade or uninstall Veeam ONE Client, use the `_uninstall.xml` and `_upgrade.xml` files located in the same folder.

### Running Unattended Installation

To install Veeam ONE in unattended mode:

1. Open the product installation image file.
2. Navigate to the `Setup\Silent\AnswerFiles` folder.
3. Depending on what components you want to install, open `VO for Veeam ONE` or `VOCLient for Veeam ONE Client`.
4. In the relevant folder, open the `VoAnswerFile_install.xml` file in your preferred text editor.

   The file contains all the relevant information, including optional and required parameters for you to complete based on your installation requirements.

5. Once all parameters are complete, save the file and close.
6. Navigate back to the folder where the `Veeam.Silent.Install.exe` file exists (typically the `setup\silent` path of your root folder) and open the command line tool.
7. To check that all parameters are correct, run the `Veeam.Silent.Install.exe /?` command. This will display any unspecified parameters that must be completed before running unattended installation.
8. To run the install, enter `Veeam.Silent.Install.exe /AnswerFile C:\YourDesiredLogFolderPath_install.xml` where `YourDesireLogFolderPath` is the installation log files location.

   During installation the command line will return any error messages that need to be fixed.

::: note

You cannot use your Veeam account log in to verify your license, you can only specify the path to the license file. For details on [Step 4. Provide License](typical_provide_license.md).

:::