|It has nothing to do with Ubuntu. Booting form CD is under control of the BIOS. The hard disk is not accessed until after the CD is booted. No operating system alters the function of the BIOS.|
When booting from the Windows CD you should get a message "Press any key to boot from CD" If you don't get that then there is something wrong with your CD. if you ignore it, the system will attempt to boot fro the hard disk.
I AM NOT DUAL BOOTING!!!!
Then how do you expect to boot both operations system If you do not set up a dual boot system using grub the only way you can install both OS and have them bootable is to install them each on different physical drives and use the BIOS to determine which one is booted,
The reason for this is that both operating system insert code into the MBR Each is different. The Grub loader for Linux can accommodate Windows but the Windows boot loader cannot accommodate Ununtu,. That is why Windows should be installed first.
If you do manage to fix Windows to boot on the same disk as Ubuntu, you willl lose the ability to boot Ubuntu,