A few weeks ago a non-existant partition has been showing up under "hard disk drives" on my computer. I have 3 sata drives in my computer (plus a dvd drive), and none of formatted to have partitions. This extra partition that is showing up is named "Local Disk Q:" In the properties menu, it says the drive is 0 bytes in size. I've tried to format it and all that, but it says I don't have sufficient permissions. The disk management tool doesn't show it at all. It isn't causing problems as far as I know, but it'd be nice to know what it is doing, and why. I'm running Windows 7 pro.