Holly, you're being incredibly rude, Hugrf gave you some great options and you threw them in her face.
Just so you know, as a person I don't want to help you, not if you're going to treat me like you treat other helpful people.
Make sure you try these, and don't say you've already tried them. If you've tried them already, try them again.
1. Restart your computer. Do not run anything.
2. Try the uninstaller in c/feralheart.
3. Uninstall from the control panel - Install/remove programs
4. Just delete the c/feralheart folder
5. Install in a new directory, such as c/FH. Delete all old shortcuts and make new ones using the launcher from c/FH
If none of these work, you need to tell me what happens when you try each one.