How to boot Windows DVD without UEFI

Question

I searched the web, but didn't find anything.

I formated my single partition (300GB) to mbr partition table (it used gpt before). Now I want to install windows 7 but I can't because:

Windows cannot be installed to this disk. The selected disk has an MBR
partition table. On EFI systems, Windows can only be installed to GPT disks.

I guess there is a way to boot the Windows DVD without UEFI, but how? In my bios I did not found anything that contains the word "EFI". So how can I install Windows 7 with mbr? Thanks.

Solution

If you haven't solved this yet, or if anyone else finds this thread, you have to convert to GPT:

1. When installing at the partition screen hit Shift+F10.
2. At the prompt type diskpart and press Enter.
3. Type list disk (Not the number of the disk you want to use)
4. Type select disk X where is X is the number of the disk you want to use.
5. Type clean
6. Type convert gpt

Be warned though, this will clear out the partition table on the drive; make sure you have a backup before attempting this if you have important data

Comments

[Sam]

I'm using a usb DVD drive to install windows 7

[Ramhound]

This is exactly what Taquito Sensei answer describes.

[Ramhound]

Can you provide more detail to your single sentence?

[BroScience]

Its not exactly what Taquito describes. He tells him how to convert to GPT, which the OP said he didn't want. He already that. He wants MBR, which boss clearly describes. The answers are not the same. Why would you downvote?