Windows 10: MBR/UEFI issues

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  1.    01 Apr 2018 #1

    MBR/UEFI issues


    My motherboard is UEFI compliant, however it was set up in MBR mode, I'm now receiving messages from Microsoft saying my PC will not be updated after 10 April because it is not set up in UEFI mode. I understand that to set up in UEFI mode all data on HD will be lost.

    I understand this but I've made a back up of everything on 'C' drive including the Win 10 operating system made when operating in MBR mode. If I convert to UEFI will this back up work OK with UEFI?

    This backup also includes MS Office 16 Professional , this was downloaded by an IT firm on behalf of an organisation I do some work for and I have no backup or installation disks for this although I do have the Window 25 digit key thanks to a Belarc scan. We have now parted company with this IT firm and I can't approach them. If the backup won't work then I have no way of restoring MS Office 16 that I know of.

    Thank you for reading this, I'd be grateful for any help or advice
      My ComputerSystem Spec

  2. Brink's Avatar
    Posts : 33,201
    64-bit Windows 10 Pro build 18262
       01 Apr 2018 #2

    Hello Sheffield, and welcome to Ten Forums, :)

    You can use the method in the tutorial below to convert from legacy BIOS to UEFI without losing anything.

    Convert Windows 10 from Legacy BIOS to UEFI without Data Loss Windows 10 Tutorials
      My ComputersSystem Spec

  3. Berton's Avatar
    Posts : 5,416
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint
       01 Apr 2018 #3

    Is the meaning of this saying older computers without UEFI [MBR only] will no longer be updated?
      My ComputerSystem Spec

  4.    01 Apr 2018 #4

    Berton said: View Post
    Is the meaning of this saying older computers without UEFI [MBR only] will no longer be updated?
    That does not make sense. It is irrelevant if install is uefi or legacy bios to get updates. I think message is complaining boot option is incompatible with current installation. Some bioses can boot if install does not match bios setting but may not be able to upgrade. Set bios to boot in legacy bios mode and you should be fine.
      My ComputerSystem Spec

  5. Berton's Avatar
    Posts : 5,416
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint
       01 Apr 2018 #5

    Several machines don't have UEFI/EFI capability, just checking for verification whether they are going to automatically be junk on the date given.
      My ComputerSystem Spec

  6.    01 Apr 2018 #6

    MBR/UEFI Issues


    M/B is Asus A68HM-K
    In BIOS are following settings.

    1] Boot Device Control: UEFI & Legacy OpRom: Legacy OpRom only: UEFI only . Set at UEFI only
    2] Boot from Network Devices: Legacy OpRom first: UEFI Drive first: Ignore. Set at Legacy Oprom first
    3] Boot from Storage Device: Legacy Oprom first: Both UEFI first: UEFI Driver first: Ignore. Set Legacy OpRom first
    4] Boot from PCi/PCI: Legacy OpROM first: UEFI Driver first: Set at Legacy Oprom first

    Changing [1] from UEFI to Legacy OpRom only or UEFI & Legacy OpRom results in PC not booting and displaying following:
    Recovery
    Your PC/Device needs to be repaired
    File\Windows\system32\winloadexe

    Can only get PC to boot with [1] set UEFI

    Can't really get my head round this, the m/b is definitely UEFI compliant

    Not really sure what benefits of UEFI are other than ability to have more than 4 partitions.

    Is next step - Convert Windows 10 from Legacy BIOS to UEFI without Data Loss Windows 10 Tutorials
      My ComputerSystem Spec

  7.    01 Apr 2018 #7

    Were dd you get the message I have reports locally of this as scam
      My ComputerSystem Spec

  8. Berton's Avatar
    Posts : 5,416
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint
       01 Apr 2018 #8

    Samuria said: View Post
    Were dd you get the message I have reports locally of this as scam
    That's what I'm trying to determine, haven't seen any other references to it. But then right now I don't have one of my MBR-only computers running, maybe tomorrow.
      My ComputerSystem Spec

  9.    01 Apr 2018 #9

    Berton said: View Post
    That's what I'm trying to determine, haven't seen any other references to it. But then right now I don't have one of my MBR-only computers running, maybe tomorrow.
    I have had my 2nd PC running since early this morning my time. About 9-10 hours at least and have ran windows updates quite a few times since I first saw this thread trying to replicate it. In Macrium Reflect my 2nd PC shows MBR on the disk. Also Macrium says UEFI at the top on this PC but not on the 2nd one. I will post back if I see any message of the sort. I plan on leaving the PC running for a couple days to see.
      My ComputerSystem Spec

  10. AddRAM's Avatar
    Posts : 2,112
    Windows 7 Pro x64 Windows 10 Pro x64
       01 Apr 2018 #10

    I always install windows on a MBR disk, and I have never gotten a message like that, ever.

    The only message from Microsoft you should ever get about W10 is "This PC will no longer receive security updates until it is updated to the latest version"

    And you won`t even get that message until a year after the previous version is released.

    Example: I had the Creators Update installed on the Z170 up until about a month ago, and then I got the message from Microsoft to update to the Fall Creators Update.
      My ComputersSystem Spec


 
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