Hello,

Your computer is infected with malware, which is causing this popup. Follow these steps:

1. Download and save combo fix to your desktop. You can get combo fix from the following URL http://tinyurl.com/6dbbay
2. Once you have combo fix saved to your desktop, don't run it just yet. You will need to make sure you disable any existing antivirus, antispyware, antirootkit and firewall programs that you may have installed on your system.
3. Now you can go ahead and double click the combo fix icon on your desktop. If you get a security warning, click Run on the security warning window.
   
4. Next you should get a disclaimed agreement, please click "Yes" to accept this agreement.
5. Combo fix will begin to create a restore point of your current system state before it begins scanning and repairing your system. During this time you may also get a message stating that Windows Recovery Console is not installed. Click "Yes" on this window to install the Recovery Console. Combo fix needs this in order to work correctly. After it has installed you will get another message letting you know if it installed successfully. if it did, click "Yes" on this window to begin the scan. Don't worry if you don't get either of these screens, as it means you already had it installed.
   
6. The rest of the process is pretty much waiting for combo fix to scan and disinfect your computer. When it asks you to restart, please allow it / do so.