An External Drive Spins Down, Goes to Sleep, Standby Mode

spin wdi have a new 4TB WD blue and issues with it going into sleep mode (spindown). it is confured as drive E: and a pure DATA disk. i run windows 10 64 bit. i also tried hddscanI’d like to know if there is a setting within Windows 7 that will allow the 2 external hard drives in my Western Dital My Book DuoMirror to stay spinning longer.