As you may be aware, after our recent announcement regarding the Microsoft Anti-Malware Platform Update, the two stand-alone releases (KB2831312 and KB2831316) were temporarily removed from Microsoft Update on April 10. This was because of a detection logic issue that was discovered with the Windows Defender platform update made available to Windows 8 clients (see http://support.microsoft.com/kb/2781197). The Windows Defender update was being erroneously offered to clients that had the new FEP or SCEP platform updates applied, leading to installation failures of KB2781197 that were misleading as the update does not actually apply when FEP or SCEP have been updated to the latest platform.
This has been addressed and these updates will be restored on Wednesday April 17 (today).
The KB articles for these updates are as follows:
Stand-alone / Unmanaged Clients:
Managed Clients (by Configuration Manager 2007 for FEP, or by System Center 2012 Configuration Manager for SCEP):
As noted in the KB articles, these updates may require reboots during installation.
Note that managed customers (using Configuration Manager 2007 or System Center 2012 Configuration Manager) may also see failures when installing update KB2781197 on Windows 8 clients that have the FEP or SCEP platform update applied. These failures can be ignored and should cease now that the update KB2781197 detection logic has been revised.
J.C. Hornbeck | Knowledge Engineer | Microsoft GBS Management and Security Division
System Center All Up: http://blogs.technet.com/b/systemcenter/
System Center – Configuration Manager Support Team blog: http://blogs.technet.com/configurationmgr/
System Center – Data Protection Manager Team blog: http://blogs.technet.com/dpm/
System Center – Orchestrator Support Team blog: http://blogs.technet.com/b/orchestrator/
System Center – Operations Manager Team blog: http://blogs.technet.com/momteam/
System Center – Service Manager Team blog: http://blogs.technet.com/b/servicemanager
System Center – Virtual Machine Manager Team blog: http://blogs.technet.com/scvmm
The Forefront Endpoint Protection blog : http://blogs.technet.com/b/clientsecurity/
The Forefront Identity Manager blog : http://blogs.msdn.com/b/ms-identity-support/
The Forefront TMG blog: http://blogs.technet.com/b/isablog/
The Forefront UAG blog: http://blogs.technet.com/b/edgeaccessblog/