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# Install Disaster Recovery backup agent on Microsoft Hyper-V host

## Prerequisites

DR backup agent supports the following Windows versions:

• Windows 7 SP1 or later

• Windows Server 2008 R2 SP1 or later

For proper operation of the DR backup agent, make sure to install the following software on the client:

Starting from IBDR 8.7, to establish connection between the protected client and the CFA, you must enable NTLMv2 authentication on the client.

On the clients running Windows 7 SP1 or Windows Server 2008 R2 SP1, the following Windows updates must be installed:

• KB2999226

• KB3033929

• KB3035131

On the clients running Windows 8 or Windows Server 2012 R2, or later, the following Windows updates must be installed:

• KB2919355

• KB2919442

• KB2999226

## Regular installation

On the Windows client you want to back up:

After the backup agent is installed, it gets into the Waiting for pairing state, and waits 24 hours to receive the settings (password and port) from the CFA to establish connection.

## Silent installation

Backup agent installer supports the silent mode, that is when the installation runs in the background and does not require user interaction.

To install the backup agent on a client silently:

1. Open Command Prompt.

2. Enter path-to-installer -quiet, where path-to-installer is the path to the backup agent installer.

For example:

C:\Users\Default\Downloads\backup-client-8.5.0.104.Win32.x64.exe -quiet