Sign in with
Sign up | Sign in
Your question
Solved

Windows 7 cannot install to partition of the gpt format

Tags:
Last response: in Windows 7
Share
January 30, 2014 6:25:49 PM

I just built a new computer and decided to use my old hard drive with Windows 7 and all my files on it in the new build. I booted it up and went through the installation and when I go to my hard drive screen I can't choose any of my pre-made five partitions as it says that Windows 7 cannot install to a partition of the gpt format for each one, I'm considering buying a new hard drive at this point, I've read that it is only compatible with motherboards using UEFI, however, mine does so I am unsure how to proceed, any help would be greatly appreciated.

Best solution

a b $ Windows 7
January 30, 2014 6:37:20 PM

So, you have two options.
1) Back up your data and wipe the drive. Delete all partitions then set up a new MBR partition for Windows 7.
2) Buy a new drive.

What has happened here is you are using the GPT partition scheme which cannot hold the boot volume for a Windows 7 machine. If you were installing Windows 8/8.1 or Server 2012 it would be different.
Share
Related resources
a b $ Windows 7
January 30, 2014 6:55:38 PM

The article linked does not apply to Windows 7.

Here is your answer:
http://msdn.microsoft.com/en-us/library/windows/hardwar...

Q. Can Windows 7, Windows Vista, and Windows Server 2008 read, write, and boot from GPT disks?

A. Yes, all versions can use GPT partitioned disks for data. Booting is only supported for 64-bit editions on UEFI-based systems.

You mentioned that you do not have a UEFI board. You need a 64 bit copy of Windows 7 and a UEFI compatible board with UEFI enabled.
m
0
l
January 31, 2014 5:22:33 AM

mjmacka said:
The article linked does not apply to Windows 7.

Here is your answer:
http://msdn.microsoft.com/en-us/library/windows/hardwar...

Q. Can Windows 7, Windows Vista, and Windows Server 2008 read, write, and boot from GPT disks?

A. Yes, all versions can use GPT partitioned disks for data. Booting is only supported for 64-bit editions on UEFI-based systems.

You mentioned that you do not have a UEFI board. You need a 64 bit copy of Windows 7 and a UEFI compatible board with UEFI enabled.

I just used command prompt to clear the disk and convert it to mbr and now it is installing as I type this so thanks for all the replies.
m
0
l
March 1, 2014 3:15:01 AM

mjmacka said:
So, you have two options.
1) Back up your data and wipe the drive. Delete all partitions then set up a new MBR partition for Windows 7.
2) Buy a new drive.

What has happened here is you are using the GPT partition scheme which cannot hold the boot volume for a Windows 7 machine. If you were installing Windows 8/8.1 or Server 2012 it would be different.


*****FOR ANYONE LOOKING FOR A SIMILAR ANSWER WHO'S PROBLEM LIES WITH WINDOWS THROWING A GPT PARTITION STYLE ERROR LOOK NO FURTHER!! THIS USER HAS JUST ENDED ALL OF MY SEARCHING. WHEN FIRST DO ALL THE BIOS SETTINGS FOR LEGACY MODE AND DISABLING WIN8 FAST BOOT NONSENSE ECT (READ INSTRUCTIONS) THEN BOOT FROM YOUR NEW WINDOWS 7 AND ***DELETE ALL PARTITIONS FROM WITHIN THE SAME MENU THAT GIVES YOU THE PARTITION STYLE ERROR MESSAGE) THEN HAVE WINDOWS CREATE A NEW PARTITION AND BINGO!!! ps THIS WILL NOT ALLOW YOU TO PROCEED UNTIL YOU HAVE GOTTEN RID OF ALL PARTITIONS AND CREATED A BIG BLOCK OF ALL YOUR MEMORY IN UNALLOCATED MEMORY UNIVERSE) BY THE WAY I AM WORKING WITH AN ALIENWARE M17X R4 THAT WAS PURCHASED BY TIGER DIRECT AND PRELOADED WITH WINDOWS 8. MY FRIEND UPGRADED TO 8.1 AND WAS HAVING MAJOR ISSUES AND WANTED TO GO BACK TO 7. HE WAS UNABLE TO AND I DECIDED TO TAKE A SWING. (xPADDER WORKS GREAT WITH THE TILES AND A CONTROLLER) He better be hooking me up for this one... I decided I would post because there is a lot of useless information out there regarding this and the above poster nailed it on the head for my particular particiasituation. Thanks!!!
m
0
l
June 5, 2014 4:12:54 PM

When installing Windows on UEFI-based PCs using Windows Setup, your hard drive partition style must be set up to support either UEFI mode or legacy BIOS-compatibility mode.
For example, if you receive the error message: “Windows cannot be installed to this disk. The selected disk is not of the GPT partition style”, it’s because your PC is booted in UEFI mode, but your hard drive is not configured for UEFI mode. You’ve got a few options:
Reboot the PC in legacy BIOS-compatibility mode. This option lets you keep the existing partition style. For more info, see Boot to UEFI Mode or Legacy BIOS mode.

Reformat the drive for UEFI by using the GPT partition style. This option lets you use the PC’s UEFI firmware features.

You can do this yourself by reformatting the drive using the instructions below, or if you need to preserve the data, use a third-party utility to convert the drive to GPT format.

Why should I convert my drive?

Many PCs now include the ability to use the UEFI version of BIOS, which can speed up boot and shutdown times and can provide additional security advantages. To boot your PC in UEFI mode, you'll need to use a drive formatted using the GPT drive format.
Many PCs are ready to use UEFI, but include a compatibility support module (CSM) that is set up to use the legacy version of BIOS. This version of BIOS was developed in the 1970s and provides compatibility to a variety of older equipment and network configurations, and requires a drive that uses the MBR drive format.
However, the basic MBR drive format does not support drives over 4TB. It's also difficult to set up more than four partitions. The GPT drive format lets you set up drives that are larger than 4 terabytes (TB), and lets you easily set up as many partitions as you need.
Reformatting the drive using a different partition style

To wipe and convert the drive by using Windows Setup

Turn off the PC, and put in the Windows installation DVD or USB key.
Boot the PC to the DVD or USB key in UEFI mode. For more info, see Boot to UEFI Mode or Legacy BIOS mode.
When choosing an installation type, select Custom.
On the Where do you want to install Windows? screen, select each of the partitions on the drive, and select Delete. The drive will show a single area of unallocated space.
Select the unallocated space and click Next. Windows detects that the PC was booted into UEFI mode, and reformats the drive using the GPT drive format, and begins the installation.
To manually wipe a drive and convert it to GPT:

Turn off the PC, and put in the Windows installation DVD or USB key.
Boot the PC to the DVD or USB key in UEFI mode. For more info, see Boot to UEFI Mode or Legacy BIOS mode.
From inside Windows Setup, press Shift+F10 to open a command prompt window.
Open the diskpart tool:
diskpart
Identify the drive to reformat:
list disk
Select the drive, and reformat it:
select disk <disk number>
clean
convert gpt
exit
Close the command prompt window.
Continue the Windows Setup installation.
When choosing an installation type, select Custom. The drive will appear as a single area of unallocated space.
Select the unallocated space and click Next. Windows begins the installation.
Make sure Windows Setup boots to the correct firmware mode

To automate this process, you'll need to run Windows Setup through Windows PE, and use a script to detect which mode you’re in before installing Windows. For more info, see WinPE: Boot in UEFI or legacy BIOS mode.
m
0
l
!