Multicolor shield who downloaded a program of security and it's ruining my computer.

This began the virus checking and program security supposed popped up while I was watching.  I couldn't stop, and now my computer is very slow and has to be restarted all the time.  It is a shield multicolor, with the same colours as the Windows one.  I removed what I could find in my programs, but whenever I turned off the computer, it asks me if I want to install updates and displays this icon.  Someone can tell me what it is and how do I get rid of him?  I'm pretty technologically challenged so keep that in mind when replying to :)  I think THAT I am running XP, but it's an old computer to work and I'm not sure.  I tried to get this info in will start then on my computer but it won't let me even do.

Hello

1. What is the message you see on this security pop up program?
2. What is the exact message that you receive so that closing the computer?

The following article can help you to identify the operating system installed on the computer.
What version of the operating system Windows am I running?
http://Windows.Microsoft.com/en-us/Windows7/help/which-version-of-the-Windows-operating-system-am-i-running

The following articles might help you improve the performance of the computer.
Slow PC? Optimize your computer for peak performance
http://www.Microsoft.com/athome/Setup/optimize.aspx
How to make a computer faster: 6 ways to speed up your PC
http://www.Microsoft.com/atwork/maintenance/speed.aspx

Tags: Windows

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