More information I have found:
When Windows starts with no CD-ROM in the drives, Explorer lists the optical
drives as a CD Drive under Drives with Removable Storage. When a CD is
inserted, the drive icon moves under Hard Disk Drives and is listed as a
In all other respects, it appears that Windows is identifying the optical
drives as such. I have noted that Autoplay does not seem to work and as
stated, the low disk space warning pops up (because it thinks it is a hard
drive). I have found no registry entries that seem out of place.
I did try to perform a system restore to an earlier date. System restore
fails to make changes no mater what date I select.
I don't want to reinstall Windows so pleeeese help.
> I have 2 had drives on my primary IDE bus, and 2 optical storage drives on my
> secondary IDE bus. Both pairs have a designated master and slave. The bios
> recognizes each device correctly. Windows device manager shows the hard
> drives under Disk Drives and the optical drives under DVD/CD-ROM Drives.
> The issue is that Windows Explorer lists the CD-ROM drives under Hard Drives
> and the LOW DISK SPACE warning bubble pops up (when a CD is inserted).