NoSleepHD is a simple program which writes an empty text file every few minutes to your external hard disk drive(s) to keep it from going into auto-sleep mode.

NoSleepHD Optional Features:
1. Click 'Info' tab to view drive information.
2. Monitor multiple drives by selecting, more drives in 'Configuration' tab. (Up to 5 External Hard Drives)
3. Hard drive monitoring can be stopped if necessary. (Which would allow the drive to go to auto-sleep.
4. Application can be chosen to sit in the System Tray or simply minimized.
5. Auto-run at start-up can also be enabled.

The license of this software is Free, you can free download and free use this disk management software.