One important thing is to download the correct definitions for your system’s architecture: 32-bit or 64-bit.
Once you grab the setup file you need, just double click on it and follow the on-screen instructions to apply the latest definitions to Microsoft Security Essentials.
In this part of SCCM 2012 and SCCM 1511 blog series, we will describe how to install SCCM 2012 R2 or SCCM 1511 Software Update Point (SUP).
The SUP integrates with Windows Server Update Services (WSUS) to provide software updates to Configuration Manager clients.
The UCB campus Symantec Endpoint Protection licenses expired on September 30, 2014.
The Microsoft Security Essentials Definition Updates deploys a package containing the latest virus signatures for the latest release of Microsoft Security Essentials.
Consider installing a SUP in Seconday Site when data transfer across the network is slow.
SCEP is available for use on Mac OS X, Windows 7, and Linux systems.
Before installing SCEP, any exisiting installs of the Symantec Endpoint Protection (SEP) software should be removed.
For specific directions on how to safely remove the SEP client please visit the article below for your platform.
UPDATE: I'm also being told (thanks Batch: reg add "HKLM\Software\Microsoft\Microsoft Antimalware\Real-Time Protection" /v "Disable Behavior Monitoring" /t reg_dword /d 1 /f You can also set below registry value to disable BM: HKLM\Software\Microsoft\Microsoft Antimalware\Real-Time Protection Disable Behavior Monitoring = 1 (REG_DWORD) This issue coincides with the release of a new Antimalware Engine (1.1.10501.0) released to all Microsoft Security Essentials, Forefront Client Security, Forefront Endpoint Protection, Windows Intune Endpoint Protection, and Windows System Center Endpoint Protection customers on 15 April 2014.
This issue also affects Microsoft Security Essentials.
Microsoft SCEP for Windows XP stopped receiving anti-malware updates on July 14, 2015.