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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LockDown32OwnerAsked:
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rindiCommented:
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.
rindiCommented:
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?
gheistCommented:
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
gheistCommented:
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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