I have a laptop with a drive letter that has no HW associated with it. It's listed as:

Local Disk (Q:)

I think it was put there with the Pogoplug resident SW.  If I try to open it, I get a message that says it's not accessible. The properties show it has 0 bytes used and 0 bytes free. It doesn't show up in either the Device Manager or the Disk Management programs.  If I start the resident Pogoplu SW, it assigns P: and R:

I use Win 7 Home Premium.

How do I get rid of Q: so that it's available for Pogoplug to use when the ppfs.exe is started?