App Review Microsoft Security Essentials Review (MrITReviews)

It is advised to take all reviews with a grain of salt. In extreme cases some reviews use dramatization for entertainment purposes.
The first link isn't dead, it's looking that IE don't downloaded it correctly.

This ransomware (Urausy) is very simple to remove. Just remove cache.dat and cache.ini files and Shell registry value.
 
Good review!
Another thing to keep in mind while using MSE, it offers no banking, shopping, financial transaction protection.
http://www.mrg-effitas.com/wp-content/uploads/2012/06/MRG-Effitas-Online-Banking-and-Endpoint-Security-Report-20121.pdf