On my work computer I have two USB hard drives that I use rarely (only for backups). They have a power save mode that sends them into sleep after a couple of minutes of them being idle. But whenever I open a context menu on a file, the drives are woken up (most likely caused by the "send to" handler). This causes a delay that gets really annoying really fast.
So I was wondering, is there a way to just unmount the drives and then remount them later on when I actually need them? I'm looking for a solution for Windows 7 (Ultimate if it makes a difference).
When I eject the drive, I can't find a way to get it back, other than unplugging and replugging it in.