Unwanted duplicate Windows 7 shows up in OSS

I have a toshiba satellite with three Windows 7 systems.  I am using OSS from Disk Director 11.

Two of the Windows 7 are set up with 150GB disk space, and a third, I use for testing purposes has 50GB.

My problem is that somewhere along the way, something happened, and now, after every time I use the test version, when I reboot, OSS "detects" a nonexistant fourth Windows 7 and automatically puts it on the OSS menu.  The properties are identical to the test system.  Each time I use the test system, I have been deleting the fourth system from OSS. One time, to confirm my suspicions, I selected the fourth system, and it booted the test system.
The last time I used the test system, I neglected to delete the phony fourth system, and after I did a reboot, a fifth system appeared.

My Windows 7 systems are all clones of the same system.  I merged the two partion Windows 7 into a one partion system to make the use of OSS simpler, and this has worked well until this nrecent problem.

Any ideas?