Install the latest Microsoft Forefront Security definition updates

Latest antivirus definition version: 1.71.275.0  |  Released: Nov 26, 2009 10:30 PM UTC

Forefront Client Security instructions for a 32-bit system  |  instructions for a 64-bit system  |  Forefront Server Security instructions



Install the latest Microsoft Forefront Client Security definition updates for computers running x32-based versions of Windows

For more information please review the Knowledge Base Article: How to manually download the latest definition updates for Microsoft Forefront Client Security.

If you encounter problems while trying to install definition updates for Microsoft Forefront Client Security, you can download and install the latest Microsoft Forefront Client Security definition updates for computers running a 32-bit (x86-based) version of Windows.

Step 1: Save or run the file.
After you download the latest definition updates, click Run to install the definition immediately, or click Save to save it to your computer. If you click Save, remember the name of the folder where you save the file.

Step 2: Install the definition update.
To install the saved definition update file:

  • If your computer is running Windows Vista or Windows 7, click Start, click Documents, and then locate the folder where you saved the definition file. Right-click Mpam-fe.exe, click Run as administrator, and then click Run. When you are prompted for an administrator password or confirmation, type the password or provide confirmation, and then wait while the definition files are installed.
  • If your computer is running any other Windows operating system, you must be logged on as an administrator to install the latest definition file. Browse to the folder where you saved the file, and then double-click Mpam-fe.exe to install the latest definition file.

Note: If you do not have an administrator account on the computer, ask an administrator to log on and install the definitions file for you.

For more information on how to manually download the latest definition updates for Microsoft Forefront Client Security, please review the Knowledge Base Article: How to manually download the latest definition updates for Microsoft Forefront Client Security.



Install the latest Microsoft Forefront Client Security definition updates for computers running x64-based versions of Windows

Download and install definition updates for Microsoft Forefront Client Security on computers running x64-based versions of Windows.

Note: You must be running an x64-based version of Windows to run an x64-based version of Microsoft Forefront Server Security. For more information, please visit the Microsoft Forefront Client Security website.



Install the latest Microsoft Forefront Server Security definition updates

For more information please review the Knowledge Base Article: How to manually download the latest definition updates for Microsoft Forefront Server Security.

Step 1: Save or run the file.
After you download the latest manifest file, click Run to extract the manifest file immediately, or click Save to save it to your computer. If you click Save, remember the name of the folder where you save the file.

Step 2: To view the saved manifest file:

  • Locate the folder where you saved the manifest file. Double-click UniversalManifest.cab, then double-click UniversalManifest.xml and choose a location to extract to. Locate and open the extracted UniversalManifest.xml file.
  • To determine the latest update version for an engine, search for the engine name in this file. In that section, you will see something such as:

    Engine name="Microsoft" status="active" default="{6869FAE0-44E4-4ab0-A3BB-15A609D3E574}"
    Package id="{6869FAE0-44E4-4ab0-A3BB-15A609D3E574}" tag="latest" version="0810240001" postdate="2008-10-24T06:46:46.4751223-07:00" ttl="6"

    In this case, the version is 0810240001.
Step 3: Compare update versions:

For more information please review the Knowledge Base Article: How to manually download the latest definition updates for Microsoft Forefront Server Security.