System Message - Warning?

I have pop-up blocker on and I have in Internet Options Deleted: files(and offline content), cookies, history, forms, passwords, all(also add-ons), and my settings are set at 100, but I keep getting theses pop ups every few seconds, I have been just clicking on x to close them, how do I get it to stop?

System Message - Warning

Message from System to inform you about an error detection

Windows has detected critical registry errors.

Failure to repair error will result in:

1)Hacker access to computer

2)File loss or deletion

3)Slow computer performance

Visit http://www.totalregistryfixer.com to scan and repair your registry

[Repair now%26#123;Recommended%26#125;] [Later]

and

System Message - Warning

Message from SYSTEM

Microsoft Windows has encounted an Internal Error

Your windows registry is corrupted.

System recommends a full system scan

http://www.repair-registrys.com/

To repair now for free download

[Repair now%26#123;recommended%26#125;] [Later]

System Message - Warning?bmw

Did you go to that UFO in New Jersey site ... www.todaycnn.com? I started getting those after going there. It was a question posted here.

I used System Restore to fix it

programs - accessories - system tools - system restore - go back to before that started happening

btw Don't Go To That Site! also, I have Norton ... it didn't catch it