Can anyone explain this to me please. For some reason my computer has?

starting scanning everything even though I only have my own antivirus and scanning programmes. It is not these that are scanning but cannot find what it is as it is slowing my computer down. Has anyone a clue as to what it might be please?

I have had this computer for three years and have all my security programmes etc in place so it is a mystery to me%26gt;

Can anyone explain this to me please. For some reason my computer has?anti virus

It's a trojan. You may have opened an ecard via your email or downloaded a free screen saver or codecs recently and the trojan (fake program) installed itself.

You need to identify the name of the trojan (it will try and direct you to a website to buy a product) in order to discover how to get rid of it.

Do a Google search on the name of the product it is trying to get you to buy.

Can anyone explain this to me please. For some reason my computer has?auto protect

sounds like some kind of spyware has embedded itself in your system when this happens push ctrl+alt+del and this will bring up the task manager and under the applications tab it will tell you what is running.
Press Ctrl-Alt-Del. That will open Task Manager. Then find the software that hog your computer most. They are indicated by CPU time number (how may percent). Now, find out what software is it.