Hiya,
If you ever click on a site and while it is trying to load a popup errupts,,starts scanning then begins listing the most horrible Trojan viruses by the hundreds and then asks if you want to DELETE the Trojans....DO NOT CLICK YES!!!

It is not a Microsoft Security Warning,,,,it is a virus/trojan,,,,wanting you to click YES and give it access to your computer.
After which it will tell you the Trojans are so BAD you need to purchase the full product to delete the trojans.
So, they not only get access to your computer but your CC details as well.

Clicking NO, won't make it go away.
It just keeps reloading waiting for you to click YES.

Hit and hold Ctrl, Alt, delete (for a few seconds and release)
When the Task Manager appears click END PROGRAM and it should remove it.
RUN your antivirus,,,,Update your antivirus AFTER the first scan, if you have to, then run your antivirus again.

IF you click yes,,,,everything is fine until you shutdown and reboot,,,then all you get is a heap of screens reloading and popping up and going crazy.
Most think it is one of the trojans not been deleted but it is actually the "Warning" you clicked yes to.

Nannas