Oh, I am sorry to hear that. Let's try to fix this!
- Check in your programs that you deleted it (if it's via steam it might still be there)
- Check in your computer if you deleted the folder entirely (Renpy game can run with just the folder)
- Renpy saves all the persistent datas in appdata, maybe delete them to have a really clean state, usually it's in there: C:/Users/yourusername/AppData/Roaming/RenPy/Ballads_at_midnight (or something like that)
It might be a hidden folder I don't remember.
I hope this steps will help!