How do I force Win7 to install using MBR (not GPT)?

[na85]

Hi,

My motherboard supports UEFI but I find it to be buggy and rather unstable. I would like to do a clean reinstall and go back to legacy BIOS+MBR. I don't have any drives over 4TB so this should not be a problem.

How can I accomplish this?

 

[RolandJS]

Far wiser techs than I will appear eventually and ask for computer specs [mobo], UEFI/BIOS version, etc. I think there is a thread or two on what to include with this type of question. I'm new here, so I can't tell you where those help threads are.

 

[na85]

Far wiser techs than I will appear eventually and ask for computer specs [mobo], UEFI/BIOS version, etc. I think there is a thread or two on what to include with this type of quesiton. I'm new here, so I can't tell you where those help threads are.

It's an ASUS Z-87 with the stock BIOS/UEFI, and I've only got a single internal drive on this machine, so the guides I've been able to find can't help me, as they all assume you have a 2nd drive, so you can just do it from "device management". But obviously you can't do this on the drive that Windows inhabits, while Windows is still running.

 

[AddRAM]

You simply convert the drive to MBR using Diskpart, and you disable UEFI in the bios.

http://www.sevenforums.com/tutorials/26203-convert-gpt-disk-mbr-disk.html

Option 2 Step 2

Then just install windows.

http://www.sevenforums.com/tutorials/1649-clean-install-windows-7-a.html