I have a USB hard drive that seems to disappear after some time. It is a SimpleDrive
Hitachi HDT721010SLA360 USB.
Strangely, I found that the system's internal hard drive is a Hitachi HDP725032GLA360; very similar.
I went into the Device Manager, and found a problematic USB device. I uninstalled, rebooted, and the drive came back. I believe the error was
"Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42)"
Any ideas? Tools for monitoring?