System Security Warning
Attempt to modify register key entries is detected. Register entries analysis is recommended.

System component corrupted!
System reboot error has occurred due to lsass.exe system process failure.
This may be caused by severe malware infections.
Automatic restore of lsass.exe backup copy completed.
The correct system performance can not be resumed without eliminating the cause of lsass.exe corruption.

Warning!
Name: firefox.exe
Name: c:\program files\firefox\firefox.exe
Application that seems to be a key-logger is detected. System information security is at risk. It is recommended to enable the security mode and run total System scanning.

Random scanners performed by Windows Emergency System have been noticed to interrupt every time users reboot their machines, so it becomes quite annoying because you won’t be able to continue browsing or other activities you are used to. So, every time your PC is rebooted, Windows Emergency System displays the same predefined results and the main reason of doing this is quite simple: it tries to make you scared about this situation:

Microsoft Security Essentials Alert
Potential Threat Details
Microsoft Security Essentials detected potential threats that might compromise your private or damage your computer. Your access to these items may be suspended until you take an action. Click ‘show details’ to learn more.

Additionally, you will receive messages saying that you should purchase Windows Emergency System ‘licensed’ version which will easily fix all these detections. However, those messages and detection reports written above have nothing to do with a real state of your computer and mostly are absolutely fake. Windows Emergency System is anything but real antivirus, so you must eliminate it as soon as possible.

To sum up, instead of finding and neutralizing actual infections Windows Emergency System will only fake that activity and then will demand money for invented removal services. You should never pay for its registration and remove Windows Emergency System to stop its creators who are seeking to rip you off.  Windows Emergency System removal might be a hard one to fulfill because it may also disable the Task Manager. This is why you should begin everything in Safe Mode with networking and then kill all its randomly named processes using Process Explorer if you still can’t reach Task Manager. Then run a reputable anti-spyware.