It looks like it is still trying to boot from the HDD instead of the DVD drive. Make sure you set the boot order correctly in bios, or that you are choosing the correct drive in the boot menu. How exactly were you trying to boot the CD?
Quote Originally Posted by Marvo View Post
In order to choose boot priority, you can in most situations just reboot your computer and press the F8 button while it's booting. If that doesn't work, enter your BIOS and set up the boot configuration in there.
The advanced options menu won't work, it has to be done from the BIOS or from a boot menu, which may or may not be present depending on the mobo.
edit: oh, I just realised you're probably using a Linux bootloader. That can very easily fuck with your Windows installation. That is probably what your computer is complaining about. I suggest you remove the Linux installation completely. It's useless anyway, since you have Windows 7.
The linux bootloader shouldn't fuck with windows, GRUB is pretty good at recognizing the correct windows boot partition. And since the problem is booting from the CD this is completely irrelevant.