yes you could try that next step just remember that messing around in the REGEDIT can cause big problems if you delete or change the wrong thing (be careful to follow the instructions), or use the alternative, that one user said fixed his by simply uninstalling the secondary channel in device manager, rebooting, and letting windows re-install the secondary channel.
Alternative Method—Uninstalling the Port
1. Uninstall the secondary IDE port
To do that, open Device Manager as follows. Right-click on My Computer, select Properties, click on the Hardware tag, click on the Device Manager button, click on the plus sign to the left of IDE ATA/ATAPI Controller, right-click on Secondary IDE Channel, click on Uninstall. Deactivating is not enough.
Reboot to make the changes active and permanent.
After booting Windows will automatically reinstall the IDE channel and the DVD (or CD) drive. This Plug-n-Play process can take a little while, so give it a minute after the boot process finishes.