Everything is working OK with your computer and all of sudden you are prompted with a windows alert that you are infected, showing a fake scan to scare you. First thing you need to do, DO NOT order anything from the website. Take a deep breath and follow the procedure here to fix it.

It is easy to fix this problem, this is just another misleading (rouge) anti-spyware program.

• You need a tool to remove this program. Actually, you can use registry editor to delete but it is not advisable if you are not familiar on how to use. I suggest that you download one file from Trend Micro website. Here's the link: http://free.antivirus.com/hijackthis/. Download the executable (not the installer) so you can run this tool right away. You need to use a working computer to download the program and save to a USB drive. Then copy the executable program to the infected computer. For example, copy the executable program (HijackThis.exe) to your c:\temp folder. If you don't have a temp, create the folder.
• Restart your computer. After the BIOS message, click F8 function key to boot in Safe Mode.
• Login to your workstation, go to the c:\temp folder and double click HijackThis.exe file. In open file - Security Warning, click Run to continue.
• Click "Do a system scan and save a log file."
• You will see the Trend Micro HijackThis report from R1, R0, 01, 04, etc.
• You need to find the System Tool random executable file, should be something like this: O4 – HKCU\..\RunOnce: [{RANDOM}] C:\Documents and Settings\All Users\Application Data\{RANDOM}\{RANDOM}.exe
• Put a check, then click Fix checked. This program will clean your computer.
• Restart the computer.

Now you removed the System Tool (fake anti-virus tool), it's time for you to run a full scan of your computer. If you don't have a anti-virus program install, check the Microsoft Security Essential. This is free to all Windows operating system version except for Windows Server.

Trend Micro Internet Security Pro 3.0

McAfee AntiVirus Plus 2011 3-User

Kaspersky Anti-Virus 2011 3-User

Norton Antivirus 2011 - 1 User/3 Pc