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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 (64bit32-bit / 64-bit) for Windows (recommended)
    The GUI-based tool is the best way to install the root certificates for both MSIE/Chrome as well as Firefox in Windows.  If you are using a 32bit operating system, click here to download the 32bit version..

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