7 Copyright © Acronis, Inc., 2000-2010If you choose to specify an existing local or domain user account—for example, .\LocalUser orDomainName\DomainUser—make sure that the account is a member of the Backup Operatorsgroup, before proceeding with the installation. The setup program will assign the above listed userrights to such account.If the machine is part of an Active Directory domain, make sure that the domain's security policies donot prevent the account from having the above listed user rights.Important: After the installation, do not specify a different user account for the agent service. Otherwise, theagent may stop working.2.1.4 UpdateTo update one or more Acronis Backup & Recovery 10 components:1. Run the installation package, containing the updated version of Acronis Backup & Recovery 10.2. Click Install Acronis Backup & Recovery 10.3. Click Update.4. Follow the on-screen instructions.Updating components in the unattended modeFor information about updating a component in the unattended mode, see "Unattended installationin Windows (p. 7)".2.2 Unattended installation in WindowsAcronis components can be installed in the unattended mode, as opposed to the interactive mode.You will need the configuration script mst_gen.vbs, which is located in the folder where AcronisBackup & Recovery 10 Management Console is installed—by default, C:\ProgramFiles\Acronis\BackupAndRecoveryConsole. If the management console is installed on a differentmachine, you can copy the script from that machine.The following components and features can be reinstalled or updated in the unattended mode: Acronis Backup & Recovery 10 Agent for Windows AcronisAgentWindows.msi Acronis Backup & Recovery 10 Universal Restore: AcronisUniversalRestore.msi Acronis Backup & Recovery 10 Bootable Media Builder:AcronisBootableComponentsMediaBuilder.msi Acronis Backup & Recovery 10 Management Console:AcronisStandaloneManagementConsole.msiBefore installing the agent's features (such as Universal Restore), you need to install the agent itself.To install, reinstall, or update a component in the unattended mode1. Run the setup program.2. Click Extract installation files.3. Extract the component's installation package.4. If you are installing Agent for Windows, create a transform (an .mst file) for the agent'sinstallation package by running the configuration script. Otherwise, skip this step.