Well it is an indication problem, so we are back to a shell issue. Please download ShellExView
. If you get a warning about this program, ignore it. It is a safe program to use. The download link is near the bottom of the page, you want to use the link labeled Download self-install executable for installing ShellExView with uninstall support
Once you have installed the program, run it. Then at the top, click on the company header to reorder the list. For each line that is not a Microsoft process, right click on it and select disable. you can use shift click and ctrl click to select multiple entries.
Once you have turned all of the non Microsoft entries, reboot the computer and try burning a CD again and see if the drive still disappears in windows.