I can’t believe you haven’t taken care of this by now. Like I said, it’s not going to show up in remove program list. It’s malware, they don’t do that. In fact, it is blocking you from even trying.
You have a serious malware infection. It is doing bad things with your computer. Things you are not directly seeing.
Run the usual AV programs. I like MalwareBytes first. I also run Kaspersky Rescue disc when MB doesn’t handle it.
Don’t use your computer another minute for anything until you get this fixed.
Remember, if you have one virus, chances are you’ve been doing unsafe things and have more.
After all malware is remove, change all your passwords, etc.
If there is any doubt as to it being 100% cleaned up, backup all your data, wipe the hard drive and reinstall everything.