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17 Nov 2012  

Windows 7 64-bit
Microsoft Security Essentials Closes Immediately After Starting

When I open the MSE User Interface, it closes immediately. Maybe after 1 second or so. There is no error. However, the Antimalware Service Executable (MsMpEng.exe) is still running. I have uninstalled and reinstalled, following Uninstalling MSE - Microsoft Community, using Microsoft Fix It, and using AppRemover.

Please help! Thanks!
My System SpecsSystem Spec