Windows 7: Why don't I get the black and white message after restarting the comp

I have used this system many times first with windows 95,me xp and now 7. I AM NOT A NOVICE.

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There is no registry key that controls that. Its not a windows function its a BIOS function. That message only comes up if the BIOS has been set to look for and detects a bootable disk in the optical drive.

I'm not sure how I can say this without upsetting you but you do need to read up on a couple of things. You don't seem to understand that the BIOS and Windows are two totally different environments. The last thing the BIOS does is load the OS from disk. Anything that happens before that is strictly controlled by the BIOS code on the motherboard and its settings. That Microsoft fixit you applied will have absolutely no effect on the BIOS. Editing the windows registry also has no effect on the motherboards BIOS. In Windows, when you insert a DVD or CD, its the autorun function that launches the program on the disk. The disk doesn't have to be bootable for this to happen. Autorun and being bootable are two completely different functions. Now if this is an original Microsoft DVD then it should be bootable. That being said, if you still haven't got it working,it sounds like a BIOS setting problem. This isn't an upgrade version of windows 7 is it? Is the disk clean and scratch free? Is it the original disk and not a copy? Aside from the boot order have a look at some of the other boot options in the BIOS. Stuff like "boot from other device", if you see it as an option enable it. Another option is to reset the BIOS to fail safe defaults. Its not my intension to flame you or insult your intelligence. Nobodies perfect and we all miss stuff from time to time. Please understand that I'm just trying to help you sort it out. :)

The registry doesn't come into play here since Windows isn't running.