Problem with dll injection

Hi everyone,

This is my first time posting so I will try to not do anything wrong.
You see, every time i try to use an injector, doesn't matter which one,
this program called Themida Demo opens up and says that it protected the program, and when I close the message the program crashes. I never installed it. I really need to know how to get rid of this. It isn't in the add/remove programs either. I posted a picture in the attachments.
Thanks in advance for any help.

Change the hack. It's probably packed with themida /