Yes, in order to unlock the old Quantum drives, you need to download the DiskUtil program from
here.
A locked Quantum drive will appear to only be 9Mb (thats megabytes!) in size under the PC BIOS until you run this patch. Once you have run the command against the drive, you must power cycle the PC/Drive not just use a soft reboot.
Upon reboot, the full size of the drive (15Gb , 30Gb or 40Gb) should be shown in the PC's BIOS.
You can then use DOS fdisk or the Windows Disk Management Snapin tool to partition the drive and finally format the space.
Dave.
Keeping the dream alive.