UEFI Boot Issues

I have not gone real deep in to UEFI. I have a Dell Optiplex 3010 that booted to the "You need to repair Windows" screen. The only CDs that would boot are ones that have a UEFI option. I went in to the BIOS on this computer and UEFI is turned off yet it would not boot a standard Windows 32-bit CD. I double checked every UEFI option in the BIOS and it is turned off. Any ideas?
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Disable SecureBoot.

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LockDown32OwnerAuthor Commented:
That was one of my thoughts too but since UEFI was not enabled Secure Boot was not and option.
Why do you need to boot without UEFI at all? The Windows Installation DVD's used for repairs should boot into UEFI mode.
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LockDown32OwnerAuthor Commented:
Not the Dell Windows 7 Professional. Hence the problem. I am still trying to figure out, with UEFI disabled, why UEFI comes in to play at all.
Davis McCarnOwnerCommented:
Did you turn on legacy boot in the BIOS?
UEFI and BIOS boot chains are different. You cannot change that option on installed windows (or Linux or whatever)
LockDown32OwnerAuthor Commented:
If you mean you cannot switch between UEFI and Legacy on a system currently running Windows you are correct. Like switching between SATA and AHCI on the fly. Not good.
Davis McCarnOwnerCommented:
Yes; but, most CD's are legacy boot and that is what we are trying to accomplish
LockDown32OwnerAuthor Commented:
Yes. My comment was mean't to acknowledge and support your comment about changing the option on installed Windows. It was not intended to be the answer to this question.
Davis McCarnOwnerCommented:
When you hit F12 for the not options, is the CD/DVD listed as a choice?
If it isn't, read this: http://www.dell.com/support/article/ag/en/agdhs1/SLN142679/en
While in theory UEFI CD can make partition table and vice versa - no system installer in the world does that.
LockDown32OwnerAuthor Commented:
According to Dell it was a problem with the motherboard
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