Removing security center alert issue

Hi!

This morning when I turned on my computer, I got a pop up saying:

"Security Center Alert. Your computer is being attacked by a virus. It could be a password stealing attack ".

This message keeps popping up. I cannot work. It keeps detecting all installed applications on my computer as viruses. I cannot open any application on my computer. It gives me the option to buy an application to remove the virus infections.

This application is called WiniBlueSoft. I have never heard of this application before and I do not know if I should purchase it or not, to remove the virus.

I know that most of the applications that are being detected as viruses are not viruses. How can I get rid of the Security Alert messages.The screenshot of error messages below: