OK...I see now
You are not looking at the Process tab, but at the Application
I can explain that one
Say that I'm running IE and have this webpage open. That is one listing on the Applications tab of Task Manager.
When I try to close that webpage (unsuccessfully) , using the Applications tab of Task Manager...that automatically creates a second listing. The original webpage is reflected, as well as my attempt to close it.
To close the page, I now have to delete two listings under the Application tab.
FWIW: This kind of thing happens to me also.
I've never found it difficult to End Task any program when this happens. I just put the list in alphabetical order, find the offending program listings...and click End Task on each.
Why this happens...I don't know. I only know that it will happen with certain applications I use and I suspect it's because the code is poor and I'm unable to update the program.
In your case...I would make sure that I have the latest version of IE installed, along with all critical updates.
If you already have IE8 installed...I have no clue. Maybe examine what add-ons you have installed.