There are generally two places to disable your power management options.
Your system BIOS may have an option to power down drives after a period of inactivity. This option is likely to be under BIOS Features Setup or Advanced Options.
Windows also has power management control within the operating system. The option is located in the Control Panel. Click on the icon labeled Power Management. Set the Turn off hard disks option to Never.
All Western Digital Serial ATA hard drives come with PM2 (power management) disabled.
Make sure yours is not jumpered. However WD drives its built into it.
good for carbon foot print