Microsoft Security Essentials for Windows 7 into Windows Server 2008 or 2012.

Microsoft Security Essentials is designed for Windows 7 and is not compatible (nor supported) on Windows Server 2008 or 2012.

But if you insist, you might as well end-up installing it on your Windows Server 2008 or 2012.

1. Download a copy of MSE from Microsoft: http://windows.microsoft.com/en-us/windows/security-essentials-all-versions
2. Right Click on the “mseinstall.exe”.
3. Click on Properties.
4. Click on the “Compatibility”-tab.
5. Locate the “Compatibility mode”-section.
6. Check “Run this program in compatibility mode for:”.
7. Select From the (now active) dropdown menu “Windows 7″.
8. Open a Command Prompt as Administrator.
9. cd to your Downloads folder (ie. cd C:\Users\%username%\Downloads).
10. Run “mseinstall /disableoslimit” and follow the installer prompts to install MSE on your Windows Server 2012.