The Fake MSE Alert is a rogue Anti-Malware.
It displays fake alerts and warning messages to scare users, showing a choice of Antivirus Solutions to clean the system.
Of course, the only available ones that can fix the system are rogues: AntiSpy Safeguard, Major Defense Kit, Peak Protection, Pest Detector, Red Cross Antivirus:
If your PC is infected with the Fake MSE Alert use MBAM to remove the infection (Removal instructions for fake Microsoft Security Essentials alert)