But sometimes Windows Update won’t find any updates for FCS definition.Also, if you look at the FCS version details, you will see the following information: Here are a few options you can try to update the FCS definition to the current version.If, at any time, Microsoft Forefront Client Security does not update automatically, you will need to update it manually.You will know that it is not updating when you see an amber symbol with an exclamation mark on the bottom right hand corner of your screen.NOTE: It looks like Forefront is getting the definition updates just fine but even if I do a manual Windows update check the client/AV Engine updates do not even show up as an option.
3) Microsoft does not list these Home Server variants in the Client Computer section of Microsoft Forefront Client Security 2010.
Of course, you could just leave Microsoft Security Essentials to update its definitions on its own and, obviously, it is advisable you do so.
But in case your computer is not permanently connected to the Internet or if you haven’t turned it on for a longer period of time, you should consider either forcing an update or manually updating the latest updates.
Recently I noticed that my Windows 8.1 clients were not getting updates from WSUS 3.2.
After some searching I found it was an issue with HTTPS and the solution was to disable HTTPS or enable TLS.