iedefender please help

I keep getting this pop saying my computer is infected and blah, blah, blah, basically its an iedefender pop up, and its pissing me off. I think i deleted all files that have to do with it. i scanned my pc with norton and this pop up is still coming up. anysuggestions?

[Malware Removal Specialist]

Download HijackThis  to your desktop.
Double-click on the file you just downloaded.
Click on the "Install" button to install.
It will by default install to the directory - C:\Program Files\Trend Micro\HijackThis
Please do not change the default install location.
Upon install, HijackThis should open for you.

Next click on the "Do a system scan and save a log file" button.
HijackThis will scan and then a log will open in notepad.
In the top left of the notepad window click "File" > "Save As" name it hijackthis and then save it to the Desktop.
Please save the log as a text (.txt) file.
In your post, add the log as an Attachment.

* Don't have Hijackthis fix anything yet. Most of what it finds will be harmless or even required.
** Don't use the Analyse This button. It's findings are dangerous if misinterpreted.