if it doesn't change anything then how is it meant to install also I know tons about music and medicine
well.... most programs you download have to ask permission to change things on your harddrive, like google chrome and stuff. It's to install the program. I don't exactly trust this download to the fullest, but you should only be skeptical of installations when you have no clue where they came from. Or if they have sketchy file names like "Setup.exe." Most of the time your antivirus will catch these before you give it permission.