remove UEFI from Windows 7 easily?

Golf1.6

Golf1.6

Golf1.6

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5 Oct 2012
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667
Hi

I have some serious software conflcts on my computer, an app is basically dependant on not having MBT [i think] and UEFI disabled.

Trouble is, I googled and have not been able to find any information anywhere which will allow me to remove UEFI and revert back to regular MBR partition.

ANy tips on easily doing this without reinstalling everything? I just reinstalled everything on my computer a few weeks back - took 3 days!
 
It is certainly possible with none-OS disks. I believe it may be possible with OS disks, but information is a bit hit and miss online for this. You are basically wanting to convert your GPT disk to a MBR disk.
 
I had two additional storage drives installed, so yet. The software in questions is pretty essential for work and need it urgently.
 
Broken Hope said:
How did you even accidentally install as a UEFI GPT disk any way? You need to purposely boot using the UEFI entry for your boot media.
Click to expand...

Sorry can you explain this as i thought when installing windows from UEFI motherboard, you didn't have much choice. It creates the GPT by default doesn't it?
 
Admiral Huddy said:
Safest way is to reinstall windows with one drive installed so both the MBR and EFI partitions are created on the same physical drive.
Click to expand...

This, when I install a fresh windows, I always unplug every other drive. I have made all the ports hot swappable, so I can connect them back up after installation.

Its a mess when your MBR is on another drive.
 
I remember Windows having these multiple hard drive installation woes - i thought by now they would have fixed the problem.

I rememebr during the XP days if you were changing hard drives and cloned it by placing both drives internally via sata, you had to boot with the new cloned drive in only. You have once chance to get it right. If you booted with both drives in at the same time, then one of the Windows installations will get broken.

Chances are your original hard drive was set as primary and the clone was set as secondary, so if you rebotted after clone that is how the computer will recognise it.
 
Last edited:
Admiral Huddy said:
Sorry can you explain this as i thought when installing windows from UEFI motherboard, you didn't have much choice. It creates the GPT by default doesn't it?
Click to expand...

When booting with a UEFI motherboard, for example off a USB stick in the UEFI boot order the USB stick will show up twice, one of the listings will have UEFI before the name of the stick, you have to boot using that option for Windows to install as GPT, otherwise it creates MBR.
 
just took the plunge and just reinstalled windows from scratch.. fun fun.

Had trouble just formatting and installing - windows won't install because the partition is the wrong kind. (I gues partition table is on a different drive?). So I had to load up gparted and delete all paritions and create a new ones.
 
Admiral Huddy said:
Sorry can you explain this as i thought when installing windows from UEFI motherboard, you didn't have much choice. It creates the GPT by default doesn't it?
Click to expand...


On my Mpower board I just press F12 and pick the none UEFI dvd rom Done no uefi
 
Broken Hope said:
When booting with a UEFI motherboard, for example off a USB stick in the UEFI boot order the USB stick will show up twice, one of the listings will have UEFI before the name of the stick, you have to boot using that option for Windows to install as GPT, otherwise it creates MBR.
Click to expand...
+1

that's right

the boot list shows "UEFI USB stick" and just "USB stick", same with the Optical Drive..
 
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