Page 1 of 2 12 LastLast
  1.    07 Apr 2017 #1
    Join Date : May 2016
    Posts : 63
    windows 10

    If you install Windows does it install the EFI system partition?


    Say you buy Windows 10 from Amazon. When installing, does Windows 10 also install the EFI system partition? If not how do you get that partition installed on a new drive?
      My ComputerSystem Spec
  2.    07 Apr 2017 #2
    Join Date : Oct 2016
    Suffolk UK
    Posts : 45
    Windows 10 Enterprise

    Yes, Windows creates this partition as part of the installation process. If your PC was made after about 2007 it will have a UEFI option in the Boot Menu section of the BIOS. This must be selected before starting the installation.
      My ComputerSystem Spec
  3.    07 Apr 2017 #3
    Join Date : May 2016
    Posts : 63
    windows 10
    Thread Starter

    Thanks very much. I would not have known to select an option in the BIOS
      My ComputerSystem Spec
  4.    07 Apr 2017 #4
    Join Date : Oct 2016
    Suffolk UK
    Posts : 45
    Windows 10 Enterprise

    You're welcome. You need to check for this as Windows may be installed as the old MBR/BIOS based system if this is how it was setup at the factory.
      My ComputerSystem Spec
  5.    07 Apr 2017 #5
    Join Date : Jul 2015
    Posts : 9,338
    Windows 10 Pro

    And also check the mode the SATA disk drive interfaces are set for. You want AHCI mode before you begin the Windows 10 install.
      My ComputerSystem Spec
  6.    07 Apr 2017 #6
    Join Date : Oct 2016
    Suffolk UK
    Posts : 45
    Windows 10 Enterprise

    Quote Originally Posted by NavyLCDR View Post
    And also check the mode the SATA disk drive interfaces are set for. You want AHCI mode before you begin the Windows 10 install.
    Exactly, yes....i forgot to include that!
      My ComputerSystem Spec
  7.    07 Apr 2017 #7
    Join Date : Oct 2014
    New Jersey
    Posts : 1,386
    Windows 7 Pro x64 Windows 10 Pro x64

    Quote Originally Posted by iamjim View Post
    Say you buy Windows 10 from Amazon. When installing, does Windows 10 also install the EFI system partition? If not how do you get that partition installed on a new drive?
    If, for some reason, you did get a PC on which someone installed W10 using Legacy mode on a MBR drive, you would not have that partition.

    And there would be no reason to want to try to create it.

    It`s only created when you install windows using UEFI on a GPT disk.

    Research, Research, Research
      My ComputersSystem Spec
  8.    07 Apr 2017 #8
    Join Date : May 2016
    Posts : 63
    windows 10
    Thread Starter

    This is a brand new build
      My ComputerSystem Spec
  9.    07 Apr 2017 #9
    Join Date : Oct 2014
    New Jersey
    Posts : 1,386
    Windows 7 Pro x64 Windows 10 Pro x64

    Is there some problem ?
      My ComputersSystem Spec
  10.    07 Apr 2017 #10
    Join Date : Apr 2017
    Posts : 7
    Windows 10 Pro

    If legacy BIOS setting of off, it will install as UEFI. If legacy setting is on, boot menu will give you a choice between UEFI and normal MBR. If you don't go through boot menu, I think it's like random selection.
    If you have an older motherboard, it will install as normal MBR.
    For windows 32-bit, it's normal MBR, unless you have one of the special 32-bit UEFI firmware/BIOS. I've seen few.

    You can move between MBR and UEFI/GPT easily using Macrium software. I've done it many times.
    Restoring a UEFI/GPT System image to MBR - KnowledgeBase - Macrium Reflect Knowledgebase
    How to Restore an MBR System image to UEFI/GPT (Convert, GPT, MBR, Restore)

    You can move between AHCI and IDE by booting from a separate SATA controller card, then changing the BIOS and drivers. Or the hard way by changing the device ID in registry or something like that, which I've done few times.
    Last edited by dimar; 07 Apr 2017 at 23:48.
      My ComputerSystem Spec

 
Page 1 of 2 12 LastLast


Similar Threads
Thread Forum
Can't Install Windows 10 to a GPT Partition
I'm pulling my hair out here. PROBLEM: Can't install Windows 10 x64 from an OEM disk ... to a Samsung 850 EVO 500Gb SSD ... on a GPT partition. It installs instead on a MBR partition. SPECS: Motherboard: Gigabyte GA-Z170X-Gaming 7 ...
Installation and Upgrade
How do I re-install Windows with or without recovery partition?
Hello, I accidentally installed grub onto my windows partition and erased the whole thing while trying to perform a Linux install. My laptop shipped with win 8, but I upgraded it to win 10 a few months ago. Now, there are no operating systems...
Installation and Upgrade
Solved Gateway nv59: "We couldn't update the system partition" Can't install
Does not meet system requirements Get Important updates: cleared. Gets windows 10 ready but then it Checks requirements: Windows does not prompt any choices, We couldn't update the system partition Dialog crashes.
Installation and Upgrade
Install x64 on 32 bit system+keep data files in separate partition?
I'd like to install x64 on my PC. I've partitioned the single 500GB drive so that I have the OS in drive C: and the data in drive F:. Can I install x64 on the computer, and keep the data files in F:? Thanks
Installation and Upgrade
Solved No System partition on new clean install
I did a clean install build 10130 on separate (MBR) ssd. All other ssds (Win 7 and Win 8.1) were unplugged. I ended up with no "system" partition. I use the Win 8.1 ssd as the first in the boot order and this drive has a "system" partition from an...
Network and Sharing
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 16:09.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App



Windows 10 Forums