Is possible to install windows 8.1 in only one partition (GPT ) ( There are at least three in a default installation ).

Thank you !

Make sure your BIOS supports  UEFI.

I shall suggest you to go through the following threads:

Windows Setup: Installing using the MBR or GPT partition style

http://technet.microsoft.com/en-us/library/dn336946.aspx

Windows and GPT FAQ

http://msdn.microsoft.com/en-us/library/windows/hardware/gg463525.aspx

Also:

http://gparted.sourceforge.net/

Hello !

Of course the bios support UEFI.

But in those link I can't find the answer for my question.

When I install the windows 8.1 with default method , 3 partition are created. I want t know if is possible to install in one partition only ( GPT ) ?

On windows 8  (MBR style) , is possible to do this. But what about GPT ?

I spent some time today on this and the answer is no. 

You can get rid of winre recovery partition but you will need at least a efi partition to boot successfully, By the UEFI 2.3.1 spec, the default firmware settings should open the file: \efi\boot\bootx64.efi in the EFI System Partition (ESP). and this partiion has to be formated with Fat32 and not NTFS thus, we need at least two partitions. 

I spent some time today on this and the answer is no. 

You can get rid of winre recovery partition but you will need at least a efi partition to boot successfully, By the UEFI 2.3.1 spec, the default firmware settings should open the file: \efi\boot\bootx64.efi in the EFI System Partition (ESP). and this partiion has to be formated with Fat32 and not NTFS thus, we need at least two partitions. 

Hi dcode25,

FOR UEFI,

For new installations, by default, Windows Setup creates a system partition (that is, an Extensible Firmware Interface System partition, also called EFI System Partition, or ESP), a Microsoft Reserved partition (MSR), and a Windows partition. They are all required.

MSR is not visible in disk manager so there are only 2 partitions actually.

The recommended configuration includes a Windows RE tools partition, a system partition, an MSR, a Windows partition, and a recovery image partition. Windows RE tools partition and recovery image partition are optional.

Regards

D. Wu

• Edited by Deason WuMicrosoft contingent staff 55 minutes ago

Its simple, I am listing steps below, feel free to ask for clarification if you need assistance. 

1. boot into winpe and clean the disk if it has some other partition. (boot from media and then at wekcome prompt press shift F10)

2. open diskpart.

3 select the disk and create partition for EFI. (create partition efi size=350)

4 format this partition with FAT32, (format fs=FAT32 quick)

5. create second partition with NTFS, (create partition primary and then format it with NTFS file system assign it letter c:)

6. In windows DVD, locate install.wim, it should be by default under x:\sources\

7. Apply the wim file on the image, 

Dism /apply-image /imagefile:x:\sources\install.wim /index:1 /ApplyDir:C:\

8. Run the command to copy the boot files to this new EFI partition. 

bcdboot c:\windows

boot up! 

regards

Hi dcode25,

FOR UEFI,

For new installations, by default, Windows Setup creates a system partition (that is, an Extensible Firmware Interface System partition, also called EFI System Partition, or ESP), a Microsoft Reserved partition (MSR), and a Windows partition. They are all required.

MSR is not visible in disk manager so there are only 2 partitions actually.

The recommended configuration includes a Windows RE tools partition, a system partition, an MSR, a Windows partition, and a recovery image partition. Windows RE tools partition and recovery image partition are optional.

Regards

D. Wu

• Edited by Deason WuMicrosoft contingent staff Monday, March 09, 2015 6:19 AM