How do I disable automatic file save loactions?

ok so i accidentally checked a box while downloading a file and now, everytime i download a music file it automatically saves to a random place i can never find. i wanted to know if any1 can help me uncheck this box(which isnt reappearing) so when i go to download the file, it asks me where i want to save it instead of automatically starting and downloading somewhere random? sorry its a bit confusing.