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The InstallRoot application is the most simple and straightforward way to install all DOD certificates in your windows operating system.   The links below will let you download the tool from the DISA.MIL website.

  • Download the InstallRoot 4 Application (64bit) for Windows (recommended - requires Java installed)
    The GUI-based tool is the best way to install the root certificates for both MSIE/Chrome as well as Firefox in Windows.  It requires Java to be installed on the workstation.  Don't forget to run it twice - once for the Windows certs, and again for the Firefox certs.Download the InstallRoot command line tool for Windows (Java not required)
    The command line tool for Windows installs the root certificates for Internet Explorer and Chrome ONLY. Firefox users must use the first link, or manually install them from the instructions below. 
    If you are using an older 32bit operating system, click here to download the 32bit version..

OPTION 2 - Manually Install the DOD Root Certificates (All Systems / Browsers)