1.1. System Requirements

Hardware Requirements

  • CPU

    • minimum: 2 cores

    • Recommended: 8 cores

  • System memory

    • Minimum: 2 GB

    • Recommended: 8 GB

  • Hard drive space

    • Minimum: 20 GB free

    • Recommended: minimum + enough storage to keep the files for all users

Software requirements

  • Operating Systems: Windows 8.1 / 10 / 2008 R2 / 2012 / 2012 R2 / 2016 / 2019

  • Bitness: 64-bit only

  • Windows Installer 5.0 or higher

Minimum supported browsers

  • Chrome

  • Microsoft Edge 38 or later

  • Internet Explorer 11 or later

  • Safari 5.1 or later

  • Firefox 52.9.0 or later

Additional installation of 3rd party framework/components

The following framework/component may be shared with other applications. Uninstalling may result in unexpected behavior of other applications.




Microsoft SQL Server 2014 Express LocalDB

2014 Express LocalDB


.NET Framework

Microsoft .NET Framework 4.7.1


Web server configuration

NGINX is used as our underlying HTTP(S) and reverse proxy server. The web server is embedded in the application and is not shared by other processes running on the machine. All NGINX processes will be stopped, and the program itself physically removed from the hard drive, following a successful uninstall of MetaDefender Vault.

On startup, the web server will begin listening on the previously configured HTTP(S) port or on the default HTTP port (8010 if free), in case of a clean install.

Following MetaDefender Vault version 1.3.7, REST API calls should be made to the Web UI port.
The reason is that the REST API service connection is no longer secured (TLS/SSL connections are no longer supported).
NGINX acts as a TLS/SSL termination proxy for the REST API service.

Port usage

MetaDefender Vault requires two free ports in order to run:

Service name


MetaDefender Vault REST API


MetaDefender Vault Web UI


Whitelisting requirements

  • In order to be able to access the user interface from outside, the port 8000 and 8010 (default) should be opened

  • Any process running out of the MetaDefender Vault install directory should be whitelisted. It is best to exclude the folder from any real-time protection

  • File storage (permanent and temporary) or the installation folder should be excluded from real-time protection