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Windows 7 - The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks
When trying to install W7 in 64-bit form using an Intel DP45SG mainboard. I get the error message "The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks."
I have a new (SATA) hard drive that I am trying to install to. I guess I need to do something to change the formatting/partitioning. Where do I go from here?
I installed the W7 32-bit version and it works like a champ.
Try forcing the computer to boot the Windows 7 setup disc in BIOS mode, versus EFI mode. Just hit ESC when booting up to take you into the EFI boot manager and select the DVD-DRIVE, versus the ACPI(....) string.
Andre Da Costa http://adacosta.spaces.live.com http://www.activewin.com
Best regards, Andre techingiteasy.wordpress.com Windows Expert - Consumer
I have Asus P8Z68 Deluxe mother board with EFI . Already on one TB WD Black Caviar Hard Disk 64 bit Windows Seven is installed. On the other one TB WD Black Caviar Hard Disk I am trying to install Windows 8 but I get this error. I press ESC on boot it does
not take me to the EFI boot manager as you suggested only delete does. By pressing delete I can choose the selected DVD drive to boot but cannot get rid of this error. So what to do?
While trying to install Windows 8 64 bit Consumer Perview I get the error "Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks. MIcrosoft MVP AndreDa Costa suggested
to press Escape while booting up to go to EFI boot manager and select trhe DVD Drive. It does not work that way with Asus motherboards, I have to press Delete to get to the Setup and select the DVD Drive. AAfter selecting the DVD drve with the iso Windows
8 I still get the error.
So I booted into Windows Seven and deleted al the partitions of the 2nd Black Caviar Hard Disk. After that I converted the 2nd HDD MBR into GPT and made 4 GPT partitions. I then again tried to iclean install Windows 8 consumer Perview on one of the GPT
partitions of the 2nd disk but now I get the error"We couldn't create a new partition or locate an existing one. For more information, see the Setup log files. So I converted the Disk MBR into GPT and land up wioth this error & so where do I go from here?
As per setup log files they are in Windows 7 64 bit but they pertain to the setup of Winhdows 7 not windows 8 and that too only confined to Roxio 12. In fact I am trying to have a dual boot with Windows Seven 64 bit & Windows 8 64 bit Consumer Perview.
@salemStardust - Very curious to know if you were able to solve this problem. I have the same motherboard as you and the same problem. I have a single 1TB Caviar Black drive, on which I installed Windows 7 after leaving a 200GB partition for Windows 8
CP. But Windows 8 CP refuses to install, saying that it needs a GPT partition.
But I didn't think even Windows 7 would install on an EFI system except on a GPT partition. So how do I tell if my system really does have GPT partitions and the Windows 8 install is giving me an incorrect error message.
I will try tyrred's suggestion, but confidence is not high.
I believe I understand what happened in my case. Someone on the ASUS forum said something that caused a light bulb to go off. I'm pretty sure that when I installed Windows 7 on this system, I did it in BIOS mode, not UEFI mode, so that's why Windows 7
made MBR partitions I guess. I didn't realize that, at least for ASUS, you turn UEFI mode on by picking a boot device that has UEFI enabled rather than one that doesn't. It was only fairly recently that I noticed that some of the boot devices were marked
as UEFI devices. Anyway, then later when I tried installing Windows 8 CP, I booted from the UEFI DVD device (by then I had noticed the difference), and that's why Windows 8 didn't like my MBR partitions. Today, I booted from the non-UEFI DVD device into
Window 8 CP setup, and it installed on my MBR partition just fine.
So, if you have a UEFI system, make sure you understand whether you are booting in UEFI mode or not. Maybe I'm not the only one who built a system without first understanding this.
and here is another twist to this story , my rig has win 7 64 bit gpt not mbr, the board come with a bios that had to be updated first . becouse 32 bit is not the same as 64 bit , and uefi and bios`s are not compattable ..
it would be nice if some one in the know would post a sticky about whats what about this stuff.
when people post problems with these systems it would be most helpfull to state the exact system and parts thay have and exactly what they want to do or what exact problem they have .
it looks like simple things are getting simply more compicated , there are a lot of things in the
uifi bios`s that need to be set in differrent ways . simple onece or twice done , but not so simple whithout priore expereance .