Trouble installing Win 10 64 bit, MBR/BIOS. Partition needs to be GRT

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  1. Posts : 8
    windows 10 32 bit
       #1

    Trouble installing Win 10 64 bit, MBR/BIOS. Partition needs to be GRT


    The problem I'm having is that I receive the error message: “Windows cannot be installed to this disk. The selected disk is not of the GPT partition style”, when trying to install Windows 10 64 bit onto the current Windows 10 32 bit system.

    The current state of the drive I want to install to is...

    DISKPART> detail disk

    Samsung SSD 860 EVO 1TB
    Disk ID: A956F8A1
    Type : SATA
    Status : Online
    Path : 2
    Target : 0
    LUN ID : 0
    Location Path : PCIROOT(0)#PCI(1F02)#ATA(C02T00L00)
    Current Read-only State : No
    Read-only : No
    Boot Disk : Yes
    Pagefile Disk : Yes
    Hibernation File Disk : No
    Crashdump Disk : Yes
    Clustered Disk : No

    Volume ### Ltr Label Fs Type Size Status Info
    ---------- --- ----------- ----- ---------- ------- --------- --------
    Volume 2 C Samsung SSD NTFS Partition 796 GB Healthy System

    My System Info.
    OS Name Microsoft Windows 10 Enterprise
    Version 10.0.18363 Build 18363
    Other OS Description Not Available
    OS Manufacturer Microsoft Corporation
    System Name ROGERPC-V6QO2A4
    System Manufacturer System manufacturer
    System Model System Product Name
    System Type X86-based PC
    System SKU SKU
    Processor Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, 3401 Mhz, 4 Core(s), 8 Logical Processor(s)
    BIOS Version/Date American Megatrends Inc. 4102, 9/9/2013
    SMBIOS Version 2.6
    Embedded Controller Version 255.255
    BIOS Mode Legacy
    BaseBoard Manufacturer ASUSTeK Computer INC.
    BaseBoard Product P8Z68-V LE
    BaseBoard Version Rev X.0x
    Platform Role Desktop
    Secure Boot State Unsupported
    PCR7 Configuration Binding Not Possible
    Windows Directory C:\Windows
    System Directory C:\Windows\system32
    Boot Device \Device\HarddiskVolume4
    Locale United States
    Hardware Abstraction Layer Version = "10.0.18362.752"
    User Name ROGERPC-V6QO2A4\roger
    Time Zone Mountain Daylight Time
    Installed Physical Memory (RAM) 6.00 GB
    Total Physical Memory 3.48 GB
    Available Physical Memory 433 MB
    Total Virtual Memory 7.73 GB
    Available Virtual Memory 2.49 GB
    Page File Space 4.25 GB
    Page File C:\pagefile.sys
    Kernel DMA Protection Off
    Virtualization-based security Not enabled
    Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/device(s) detected, TPM is not usable
    Hyper-V - VM Monitor Mode Extensions Yes
    Hyper-V - Second Level Address Translation Extensions Yes
    Hyper-V - Virtualization Enabled in Firmware No
    Hyper-V - Data Execution Protection Yes
      My Computer


  2. Posts : 27,526
    Windows 10 Pro x64 Version 21H1
       #2

    Hi Roger. Welcome to TenForums @rogertsch


    Is there anything on disk that you are trying to install to? (anything needed to be kept ?)


    Not sure what you mean when you say "when trying to install Windows 10 64 bit onto the current Windows 10 32 bit system"


    Is the install an upgrade or are you attempting a clean install?
      My Computer


  3. Posts : 3,644
    Windows 11 Pro 64 Bit 21H2
       #3

    If you are doing a Clean Install and do not need to save any info on this drive, then Run the Clean Command in Diskpart. and press Enter. This will make the drive Unallocated Space. Then type Convert GPT and press Enter this will convert to the drive GPT.. You then can boot off of the Windows installer, choose your Language, then Custom Install. In Where to Install Windows the drive should show as Unallocated Space, press Next to install Windows.
      My Computer


  4. Posts : 17,281
    Windows 11 Pro
       #4

    Or just select the custom install option in setup. When you get to the list of partitions on the drive, just delete every partition until it is one big unallocated space. Highlight that unallocated space and click next. This is assuming there is no data on the physical disk that you want to keep.
      My Computer


  5. Posts : 8
    windows 10 32 bit
    Thread Starter
       #5

    Well, let me clear up a couple of things. I do want a windows.old folder created during the install. I believe this is why I was asked if I was doing a clean install or a custom install. So, if I'm going to do a custom install a windows.old folder will be created, is that correct? It also seemed to me that there were two separate issues. One is that there needed to be a GRT partition created on the Drive I'm installing to and also it seems there is a conflict with my bios settings? In the case of my bios settings and maybe I'm wrong but does it need to be changed, after reading many articles about doing an install with a legacy bios or with a UEFI bios. My bios is currently set to legacy mode. Should this be changed before of after creating the new GRT partition???

    - - - Updated - - -

    So, if I want to keep info/data from my current installation then I should create a separate GRT partition to install new OS, which is an upgrade I suppose? I'm trying to install Windows 10 64 bit onto my current drive that is running a Windows 10 32 bit version.

    - - - Updated - - -

    Caledon Ken said:
    Hi Roger. Welcome to TenForums @rogertsch


    Is there anything on disk that you are trying to install to? (anything needed to be kept ?)


    Not sure what you mean when you say "when trying to install Windows 10 64 bit onto the current Windows 10 32 bit system"


    Is the install an upgrade or are you attempting a clean install?
    Hey Ken, yes I do want to keep info from my current Windows 10 32bit version and be able to access that info after I install a version of Windows 10 64bit.

    - - - Updated - - -

    Caledon Ken said:
    Hi Roger. Welcome to TenForums @rogertsch


    Is there anything on disk that you are trying to install to? (anything needed to be kept ?)


    Not sure what you mean when you say "when trying to install Windows 10 64 bit onto the current Windows 10 32 bit system"


    Is the install an upgrade or are you attempting a clean install?
    Hey again Ken, you know what I would really like to do is install the new OS Windows 10 64 bit on my SSD drive which currently has Windows 10 32bit running on it and have a Windows.old created on a separate drive so I could install the new Windows version on the clear and clean SSD drive and then be able to access the old Windows 10 32 bit version from the separate drive, is that possible?
      My Computer


  6. Posts : 807
    Windows 10 Professional x64 21H2
       #6

    rogertsch said:
    Hey again Ken, you know what I would really like to do is install the new OS Windows 10 64 bit on my SSD drive which currently has Windows 10 32bit running on it and have a Windows.old created on a separate drive so I could install the new Windows version on the clear and clean SSD drive and then be able to access the old Windows 10 32 bit version from the separate drive, is that possible?
    If you are concerned about accessing your data, my suggestion would be to create a system image. Macrum reflect seems to be the recommended on this forum. Save that image to a remote drive. Clear off the SSD and clean install Window 10 64 bit. Install Macrium reflect and mount the image you created from the 32 bit. Just my two cents worth.

    Mount an image from Macrium Reflect
      My Computers


  7. Posts : 3,847
    Windows 3.1 to Windows 10
       #7

    I'm trying to install Windows 10 64 bit onto my current drive that is running a Windows 10 32 bit version.
    You can not upgrade from x86 to x64 - must clean install the x64 OS (No windows.old Folder)
      My Computer


  8. Posts : 17,281
    Windows 11 Pro
       #8

    As @Kyhi pointed out... you won't be able to upgrade from 32 bit to 64 bit Windows and have a Windows.old folder created. To go from 32 bit to 64 bit it has to be a completely clean install that will not save anything from the old system. If you want to keep anything from the old system, it needs to be moved to a second drive first, before the install of Windows 64-bit is started.

    Also, @rogertsch, you can't just create a GPT partition. GPT v. MBR refers to the manner in which the entire physical disk is partitioned. The entire disk must be either GPT or MBR, not individual partitions on the disk.
      My Computer


  9. Posts : 3,996
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #9

    On a computer that has UEFI BIOS, Windows 64 bits can be installed as Legacy - MBR or UEFI - GPT.
    - To install as Legacy - MBR you MUST boot the installation drive as Legacy
    - To install as UEFI - GPT you MUST boot the installation drive as UEFI.

    For what I see from post #1, you have a windows 32 bits installed as Legacy-MBR and you are booting the installation drive as UEFI. When you try to install as UEFI on a MBR drive you get the message “Windows cannot be installed to this disk. The selected disk is not of the GPT partition style”.

    To install Win 10 64bits on the MBR drive and create the Windows.old folder, you must boot the installation drive as Legacy, not UEFI.
      My Computers


  10. Posts : 17,281
    Windows 11 Pro
       #10

    Megahertz said:
    To install Win 10 64bits on the MBR drive and create the Windows.old folder, you must boot the installation drive as Legacy, not UEFI.
    Since the old system is 32-bit and the new install is 64-bit, that won't work. It's impossible to create a Windows.old folder going from 32-bit to 64-bit.

    Yes, 64-bit Windows can certainly be installed on an MBR drive, but Windows.old folder cannot be created.
      My Computer


 

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