PC wont boot correctly

I have formatted my PC the same way I always have and loaded with Vista. Problem is it now says something like Boot disk failure, please insert system disk. The O/S is on the drive ok but wont boot unless the CD is in the drive. If the CD is not in the drive the error occurs. Why? Thanks.

  Graphicool1 13:57 11 Mar 09

Have you tried going into the Bios and checking the Boot order?
3.Disable (no floppy)

Yes when it was set to Hard disk first, the error occured then I set to CD-Rom first and the error occured, but when I put CD in it booted into windows.

Any more help please?

It seems to me that the PC wants to take its boot instruction from the CD rather than the O/S that is on the hard drive.

Ok, now it seems to boot without the CD in but in the boot manager there seems to be 6 Vistas for it to choose from! How do I remove the ones that are not needed?

  Fruit Bat /\0/\ 17:54 12 Mar 09

This thread is now locked and can not be replied to.

What is ransomware and how do I protect my PC from WannaCry?

What I learned from my mentor, Oscar-winning VFX supervisor Phil Tippett

Siri vs Google Assistant