Microsoft Security Essentials v4.0 installs successfully on Windows XP 64-bit and Windows Server 2008 R2

I have talked in the past about Microsoft Security Essentials being installable on Windows XP 64-bit and Windows Server 2008 R2 despite being “against the Terms of Service” as ballyhooed by the arrogantly myopic Microsoft Forums.

Well, despite the fact that version 3.0 was a no-show, version 4.0 was released on 2012-04-24 and guess what — nothing has changed. I didn’t even know that MSE v4.0 was released until late that month, and I found them already installed on my Windows XP 64-bit…

MSEv4 on XP 64-bit

…and Windows Server 2008 R2 machines…

MSEv4 on Win2K8R2

…via the auto update functionality.

In fact, It even works on Windows Server 2003 R2…

MSEv4 on Win2K3R2

…which was an unexpected surprise. I recently set this unit up as a workstation running server software, because I had the unusual situation of having a motherboard that could only take 32-bit processors, but which could take up to 12Gb of PC3200 ECC REG memory. Since any normal 32-bit desktop version of Windows runs into the 4Gb memory barrier (showing and using at most 3.5-3.7Gb of memory), I was forced to go with Server 2003 R2 Enterprise; the only 32-bit version of Windows that can access up to 12Gb of memory.

I am curious if MSEv4 will install on fresh copies of these systems (as what I have are auto-updated from v2), but I don’t have the time right now to answer that. The question I will be looking into over the next few days, however, is if MSEv4 is now installable on Windows for Legacy PC’s, which was able to take version 1 but became persona non grata with version 2. Hopefully I will have some good news to report.

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