Windows 7, RunDLL Problem?

My Laptop is Windows 7 and when I turn it on I keep geting this pop up.

"There was a problem starting C:\Users\UserName\AppData\Local\atatubc.ddl

The specified module could not be found."

I can't remember what it's called, but I have this anti virus stuff that sometimes when you plug in a USB it opens and tells you that it might be a threat and asks you if you want to move it to the vault, classify as a power user and some other stuff like that. I looked at the threats and it told me that two DLL files where trojans. I tried removing them but it said that only one could be removed. The pop up is still coming up but the warning thing isn't anymore.

I googled it and I got someone saying that it's just a temporary file or a malware component. And then I found someone who said it was hijackware infection (I have no idea what that is but it sounds bad). These ones were a similar pop up except that the '\atatubc.ddl' part was different on both.

I hope that you can actually understand what I wrote and if you know anything that could help, that'll be really great!