Security Essentials 2011 is a rogue antispyware program that was designed having malicious intentions. It's a program that simulates actions of security tool though it doesn't have any useful functions. Security Essentials 2011 doesn't ask for user's permission to be installed and does that without any authorization. The program is also configured to be started right after computer boots up.
When Security Essentials 2011is loaded it first of all starts scanning computer for infections. The scanner looks very trustful so less experienced computer users might easily fall for this trick. When the scan finishes the program generates a screen of scan results where it claims to detect a bunch of different infectious files. The program will insist to remove them by purchasing a license of Security Essentials 2011.
Unfortunately, that's not a solution. If you pay for Security Essentials 2011, you will lose your money as the situation of your computer will remain the same. One more thing to mention is that all pop up ads and security notifications warning that your system is at risk is a consequence of Security Essentials 2011 existence. Actually the real problem is Security Essentials 2011 itself. Once you remove it, all your computer problems will be solved out.
If you have been tricked by this noxious application and have already paid for Security Essentials 2011, immediately contact your credit card and dispute the charges. Afterwards you have to scan your system with a reputable antispyware program in order to eliminate Security Essentials 2011 from your system once and for all the time.