# Upgrading RabbitMQ and ERLang / Install .Net 4.6.2

This section explains how to upgrade RabbitMQ and ERLang and install .NET 4.6.2. This specific task allows users to either use a Wolters Kluwer-provided script available on your release media or perform manual upgrade steps.

Note: The `UpgradeRequirements.ps1` file is located on your release media at: `ReleaseFiles\Scripts`.

1. Approach #1: Scripted; perform the following:
   - Open a powershell console as administrator. Make sure execution policy is set to unrestricted >Set-ExecutionPolicy –scope Process unrestricted .
   - Execute the script: UpdateRequirements.ps1.
   Note: This script uses Chocolatey; for more informatiion, see https://chocolatey.org/.
2. Approach #2: Manual; perform the following:
   - Download and install ERLang 19.1.
   - Download and install RabbitMQ 3.6.5. From the RabbitMQ site, download rabbit-server-3.6.5.exe.
   - Download and install Microsoft .NET 4.6.2.
   Note: For more information on downloading and installing ERLang and RabbitMQ, see Installing RabbitMQ. For offline Microsoft .NET 4.6.2 installations, see https://www.microsoft.com/en-us/download/details.aspx?id=53344.