Jan 20, 2011 12:50 GMT  ·  By

Customers running the latest iteration of Microsoft’s free security solution for Windows will get the first update for the AntiMalware engine powering the product today, January 20th, 2011. Microsoft was initially planning to release a refresh for the Microsoft Security Essentials 2.0 on January 19th.

However, the software giant now informs that MSE 2.0’s antimalware engine update has been postponed for a day.

No reason was provided for the delay, but it’s bound that the Redmond company simply took a tad longer to reach release quality for new version of the antimalware engine, and pushed back the launch deadline for Build 1.1.650X.0 for a day.

Microsoft had announced the release of the antimalware engine update since mid-January 2011, noting at the time that the Engine Version was going to be in the range of 1.1.650X.0.

Users running Microsoft security products and familiar with antimalware engine refreshes undoubtedly know that this update will not impact MSE 2.0 exclusively.

Fact is that in addition to Microsoft Security Essentials (MSE), the update will also boost the antimalware capabilities of products such as Forefront Client Security (FCS) and Forefront Endpoint Protection (FEP) which all share the same core AV technology.

According to the software giant, the refresh is “part of regular update of our antimalware technology to address the latest in the threat landscape.”

Microsoft Security Essentials 2.0 RTM was offered to end users in mid-December 2010, with the Redmond company doing a quiet release, and in fact, barely acknowledging the launch.

Although the MSE 2.0 RTM version was 2.0.657.0, the Build of the antimalware engine was 1.1.6402.0, namely the same as the last update introduced by Microsoft in November 2010.

The full new version of the antimalware engine packed inside Microsoft Security Essentials 2.0 will be unveiled later today.

Microsoft Security Essentials (MSE) 2.0 RTM is available for download here.