Computer fails to boot without CD-ROM drive connected

[rufusisrael]

My computer does not boot once I disconnect the CD-ROM drive after installing Windows xp. I also tried changing boot priority in the BIOS but of no avail. In BIOS it does show the drive but why does not boot without CD-ROM connected. Please help.

[Computer_Commando]

...I also tried changing boot priority in the BIOS but of no avail...

What does this mean?
What is make & model of laptop?

[rufusisrael]

No this is not a laptop it is desktop computer with no brand name but with configuration of Windows XP professional sp3 operating system,  Intel (R) Pentium (R) 4 CPU 2.40 GHz, 760 MB of RAM. This means after installing windows xp if I disconnect the CD-ROM drive from the computer, the computer does not boot to the desktop. If I do not disconnect the CD-ROM from the computer and keep it as connected the computer boots and is works fine. Why it does not work normally if I disconnect the CD-ROM drive.

[Computer_Commando]

Are both the CD-ROM & the Hard Drive IDE?
If yes. are they connected to the same cable?
http://www.pcstats.com/articleview.cfm?articleid=1778&page=4

[rufusisrael]

No please both are different, hard disc is IDE and CD-ROM SATA

[Computer_Commando]

With CD-ROM disconnected, does BIOS show HD as 1st boot device?
If Yes, F10 to save & exist.
If No, does 1st page of BIOS show existence of HD?

[rufusisrael]

With CD-ROM disconnected I have not checked thoroughly what it shows in the BIOS I think I have to do that because once I disconnect the CD-ROM it refuses to boot and go to the desktop rather it asks with the message start windows in safe mode? Or start windows normally, and if I select normally it still stays there with the same message if I select safe mode it tries to boot in safe mode but then again it ends up with the above message. Thank you very much for the link.