Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Converting a UEFI motherboard from GPT to MBR?

01 Jan 2016   #1
wpr21

Windows 7 Home Premium 64 bit SP 1
 
 
Converting a UEFI motherboard from GPT to MBR?

Hello,

Would I have to disable Secure Boot as well?

Thank you.


My System SpecsSystem Spec
.
01 Jan 2016   #2
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Not necessarily, you`d have to test.
My System SpecsSystem Spec
01 Jan 2016   #3
wpr21

Windows 7 Home Premium 64 bit SP 1
 
 

Thank you.
My System SpecsSystem Spec
.

01 Jan 2016   #4
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

By the way, your thread title is totally inaccurate, you don`t convert a motherboard, you convert a hard drive from GPT to MBR etc.

But I`m sure you knew that
My System SpecsSystem Spec
07 Jan 2016   #5
LordSnow

Windows 10 32bit
 
 

The agreement between the firmware and the hard disk partition scheme is essential for locating the boot loader for the Operating System and hence, is the first step in the installation process of windows on a computer system. By default, recent hardware boot using UEFI mode. if one tries to use an old hard disk (MBR) with an updated UEFI-based system, the message “Windows Cannot be Installed On this device” pops up. This is because old hard drives maintain partitions using MBR scheme which is not supported in UEFI-based systems. Therefore, for windows installation, it is important to configure the system to boot with the legacy BIOS-compatibility mode if you want to convert GPT to MBR disk.

By the way, you can use a freeware AOMEI Partition Assistant to convert disk between MBR and GPT without data loss.
My System SpecsSystem Spec
07 Jan 2016   #6
Nipax

Windows 7/8/10 UEFI/GPT system
 
 

Quote   Quote: Originally Posted by LordSnow View Post
By the way, you can use a freeware AOMEI Partition Assistant to convert disk between MBR and GPT without data loss.
SOURCE: Convert GPT to MBR or convert MBR to GPT without data lose

Note: AOMEI Partition Assistant only supports to convert non-system disk (data disk) from MBR to GPT or GPT to MBR without losing data, does not support for converting system disk between MBR and GPT.

Quote   Quote: Originally Posted by LordSnow View Post
The agreement between the firmware and the hard disk partition scheme is essential for locating the boot loader for the Operating System and hence, is the first step in the installation process of windows on a computer system. By default, recent hardware boot using UEFI mode. if one tries to use an old hard disk (MBR) with an updated UEFI-based system, the message “Windows Cannot be Installed On this device” pops up. This is because old hard drives maintain partitions using MBR scheme which is not supported in UEFI-based systems. Therefore, for windows installation, it is important to configure the system to boot with the legacy BIOS-compatibility mode if you want to convert GPT to MBR disk.
Here is more info:

How to convert disk from MBR to GPT or GPT to MBR if you do not want to keep the existing partition style.

Convert MBR to GPT:
1. Boot from the Windows 7/8/10 USB/DVD in UEFI mode.
2. Delete all partitions on the disk until it's unallocated.

Converting a UEFI motherboard from GPT to MBR?-convert-disk-mbr-gpt-gpt-mbr-1.png

Convert GPT to MBR:
1. Boot from the Windows 7/8/10 USB/DVD in Legacy BIOS mode.
2. Delete all partitions on the disk until it's unallocated.

Converting a UEFI motherboard from GPT to MBR?-convert-disk-mbr-gpt-gpt-mbr-2.png

Installing to the unallocated space and letting Windows create the partition table and partitions works with either Legacy BIOS or UEFI boot mode.

On an MBR disk, Windows 7/8/10 setup will create a System Reserved partition and a primary Windows partition.

On a GPT disk, Windows 7/8/10 setup will create a Recovery partition (not in Windows 7), an EFI System partition, a Microsoft Reserved partition (won't show in Disk Management), and a primary Windows partition.

Converting a UEFI motherboard from GPT to MBR?-convert-disk-mbr-gpt-gpt-mbr-3.png


My System SpecsSystem Spec
Reply

 Converting a UEFI motherboard from GPT to MBR?




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
How can I configure a UEFI motherboard for MBR instead of GPT?
My new upgrade box (with no OS) has a EUFI motherboard. I just did a test install of W7 (on an old HDD) and it ended up with GPT partitioning. I don't want that, I want MBR. (And if you don't mind, I don't want to get into a discussion about WHY I want to do this. Thank you). Does...
Installation & Setup
Does this motherboard Intel DG41RQI support UEFI?
I recently updated the bios, for first time after purchase. It was purchased in 2009. After I updated bios, I got lots of new options in the bios menu. Like Core Multiplexing, CPU fan control, Usb port disabling, Hard disk predelay, Expansion card text, XD technology, Intel VT, Booting USB...
Hardware & Devices
Changing From BIOS Motherboard to UEFI
I am swapping out my older X58 BIOS motherboard for a UEFI motherboard with a new Ivy Bridge i5. I'd rather not have to reinstall Windows 7, and just want to make sure I can swap the boards and CPUs without issue. Thanks!
Installation & Setup
does my IPIEL-LA3 Ereka 3 motherboard support UEFI?
i am having no luck finding information so as to install a new 3T hard drive. this is a nightmare. one of the first bits of info i need is whether my motherboard supports or uses UEFI or EFI... any help would be appreciated since there do not seem to be any manuals available (i've checked.) take...
Hardware & Devices
installing windows 7 in new UEFI motherboard
I just upgraded my motherboard and cpu to asrock H77 Pro4-M mobo intel core i5 3550 the problem is I can't install windows 7 which I'm guessing is because of the UEFI but I can't be sure as this is my first time upgrading except for the storage more HDDs I went into the UEFI menu and...
Installation & Setup
Can i use UEFI in my motherboard?
Is it possible to use uefi in my ga-x38-ds4? http://www.uefi.org/about/
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 11:38.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App