As part of the Warning Window Blocks Monitoring error, I discovered that HWiNFO Sensors prevents external HDDs from spinning down after inactivity. One of these times, a built-in warning window was displayed, and the disks were spun down. Closing the warning box immediately caused the disks to spin up again. Would there be any way ignore disks that are spun down, and only monitor when the disks are detected to already be spinning? As for when the disks are already spinning, the monitoring constantly resets the clock for inactivity. Possibly a spindown command could be sent to the disks if the disk had no activity in the last 30 minutes (something which is already monitored in the proprietary program), with monitoring occurring immediately until then.