Windows 11 Upgrade - MBR to GPT Issues


GCS2000

New member
Local time
5:43 AM
Posts
9
OS
Windows 10
I have 3 PCs in my office with existing W10 Pro installs that are all current and up to date.

The PCs all supper UEFI and Secure Boot.

They are running in UEFI mode in the bios and not Legacy and boot to W10 just fine.

When I use the FULL licensed version of Mini Partition Tool to convert the drives from MBR to GPT and reboot I got BSD and cannot get it to boot into Windows.

I have been at this for hours and tried many, many things but so far nothing works. I have already converted 2 other PCs in the office and had no issues with the conversion and then upgrade to W11.

These are the last ones and are not cooperating at all. I am at my wits end and need help from more knowledgeable people.

Before anyone jumps on me YES I have my data backed up (Macrium Reflect full drive images).

Just to recap my process has been

1 - Full drive image with Macrium Reflect

2 - Reboot using Mini Partition Tool FULL version USB rescue medie

3 - Use MPT to convert the drive from MBR to GPT

4 - Reboot gives BSD



Things I have tried

Macrium Reflect "Fix Windows Boot" option with a USB rescue drive - no help

I have gone through steps found on the 11 forums using diskpart, listdisk, etc to create the UEFI partition that is supposedly missing - no help



Not sure what else to do. At the moment I am restoring the drive image (working W10 install) so I have my working start point back.

All PCs are 1 single SSD drive with 2 separate partitions (C for Windows, D for Programs).



Any help you guys can provide would be greatly appreciated
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
They are running in UEFI mode in the bios and not Legacy and boot to W10 just fine.


Any help you guys can provide would be greatly appreciated
The Microsoft standard is for UEFI to install to a GPT disk. How did you end up botting in UEFI mode (not legacy) with an MBR disk? Please post a screenshot of MiniTool Partition Wizard showing the disk layouts.

Capture5.jpg
 

My Computers

System One System Two

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homebuilt
    CPU
    AMD Ryzen 7 3800XT
    Motherboard
    ASUS ROG Crosshair VII Hero (WiFi)
    Memory
    32GB
    Graphics Card(s)
    EVGA GeForce GTX 1080 Ti
  • Operating System
    Windows 11 Education
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 7773
    CPU
    Intel i7-8550U
    Memory
    32GB
    Graphics card(s)
    Nvidia Geforce MX150
    Sound Card
    Realtek
    Monitor(s) Displays
    17"
    Screen Resolution
    1920 x 1080
    Hard Drives
    Toshiba 512GB NVMe SSD
    SK Hynix 512GB SATA SSD
    Internet Speed
    Fast!
The Microsoft standard is for UEFI to install to a GPT disk. How did you end up botting in UEFI mode (not legacy) with an MBR disk? Please post a screenshot of MiniTool Partition Wizard showing the disk layouts.

Will post MPT screenshot and Bios screenshot shortly

Thanks
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
screenshots
 

Attachments

  • Screenshot 2023-11-10 181328.png
    Screenshot 2023-11-10 181328.png
    457.2 KB · Views: 8
  • Screenshot 2023-11-10 182151.png
    Screenshot 2023-11-10 182151.png
    237.5 KB · Views: 7

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
Isn't the bootable USB causing the issue? Do you have it unplugged when you are trying to boot up on Windows?
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 3900X
    Motherboard
    MSI MPG Gaming Edge Wifi (X570)
    Memory
    32GB Adata XPG DDR4
    Graphics Card(s)
    ASUS GTX 1070 8GB ROG
    Monitor(s) Displays
    LG Ultrawide 34"
    Screen Resolution
    3440x1440
    Hard Drives
    Main Boot Drive : 512GB Adata XPG RGB Gen3x4 NVMe M.2 SSD
    PSU
    EVGA 600 Watts Gold
    Case
    Deepcool Genome II
    Cooling
    Deepcool Fryzen
    Internet Speed
    1Gbps
    Browser
    Chrome
    Antivirus
    "Moderna"
  • Operating System
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    i7-4790K
    Motherboard
    ASRock Xtreme6 Z97
    Memory
    16GB Corsair Vengeance Pro
    Graphics card(s)
    MSI R9 290
    Monitor(s) Displays
    LG Ultrawide 34"
    Screen Resolution
    3440x1440
    Hard Drives
    Samsung M.2
    PSU
    Thermaltake 475 Watts 80 Bronze
    Case
    Thermaltake Commander I Snow Edition
    Cooling
    Deep Cool Archer Air Cooler
    Mouse
    Logitech G402
    Keyboard
    Armageddon MKA-5R RGB-Hornet
    Internet Speed
    1Gbps
    Browser
    Chrome
    Antivirus
    Moderna :)
Isn't the bootable USB causing the issue? Do you have it unplugged when you are trying to boot up on Windows?

Nope only there to boot in to MPT directly (no Windows). If I convert the drive to GPT and remove the MPT USB bootable drive I get BSD and cannot get it to boot.

PC is a Beelink Sei 12 if that even matters
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
You have a very unusual setup that is not officially supported by Microsoft. The standard to boot in UEFI mode is to have a GPT disk with a FAT32 EFI System Partition. The computer is booting from your C: drive. I recommend you delete the 100 mb System Reserved Partition at the beginning of the drive and try again.
 

My Computers

System One System Two

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homebuilt
    CPU
    AMD Ryzen 7 3800XT
    Motherboard
    ASUS ROG Crosshair VII Hero (WiFi)
    Memory
    32GB
    Graphics Card(s)
    EVGA GeForce GTX 1080 Ti
  • Operating System
    Windows 11 Education
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 7773
    CPU
    Intel i7-8550U
    Memory
    32GB
    Graphics card(s)
    Nvidia Geforce MX150
    Sound Card
    Realtek
    Monitor(s) Displays
    17"
    Screen Resolution
    1920 x 1080
    Hard Drives
    Toshiba 512GB NVMe SSD
    SK Hynix 512GB SATA SSD
    Internet Speed
    Fast!
The drive is still MBR and the boot loader is on C:.
As you can see on NavyLCDR drive 2 image, to boot as UEFI you need a Fat32 partition.
You can convert the drive to GPT with MiniTool and then format the first partition (system reserved) as Fat32 and install the boot manager on it. Very easy.
 

My Computers

System One System Two

  • OS
    Windows 7 HP 64 - Windows 11 Pro - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 128G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 7 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    350 Mb/s
    Browser
    Firefox 64
You have a very unusual setup that is not officially supported by Microsoft. The standard to boot in UEFI mode is to have a GPT disk with a FAT32 EFI System Partition. The computer is booting from your C: drive. I recommend you delete the 100 mb System Reserved Partition at the beginning of the drive and try again.
so delete the System Reserved Partition, reboot (confirming it still goes to Windows 10) then convert to GPT with MPT and reboot and hope for the best?
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
i wouldnt delete it right away... *if it were me* - i would boot with with a partition manager, shrink the volume to create another vol of roughly 50gb in size. then delete the reserved partiton, install windows 11 on the 2nd partition, then reboot and set the proper partition as default boot. once working, then you can delete the newly installed win 11 part.
 

My Computer

System One

  • OS
    Windows 11 Pro
I have been at this for hours and tried many, many things but so far nothing works. I have already converted 2 other PCs in the office and had no issues with the conversion and then upgrade to W11.....

....Just to recap my process has been

1 - Full drive image with Macrium Reflect

2 - Reboot using Mini Partition Tool FULL version USB rescue medie

3 - Use MPT to convert the drive from MBR to GPT

4 - Reboot gives BSD
You might like to try the method I used to migrate a legacy/MBR install of Windows 10 from an old unsupported machine to my System One in My Computers below, a new UEFI/GPT supported one, so that it could then be upgraded to Windows 11.

First make a Macrium Reflect image of the old machine.

Next do a clean install in UEFI mode of the same version of Windows 10 on the new machine, this formats the drive as GPT and sets up all the required partitions. If it says the drive is currently MBR and it can't install, then from a command prompt use Diskpart to convert it to GPT.

Then restore JUST the C: partition from the Reflect image to replace the one created by the clean install (you can resize the partition to fit during the restore, if required).

Finally use the Reflect rescue media's 'Fix Windows boot problems' too to build the correct BCD entry. Windows should now boot.
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB Samsung EVO 870 SSD
    Internet Speed
    50 Mbps
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro (and all my Hyper-V VMs).

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Beta, Dev and Canary, all as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro, and the Insider Canary build as a native boot .vhdx.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    8GB
    Graphics card(s)
    (integrated graphics) Intel HD Graphics
    Screen Resolution
    1366x768
    Hard Drives
    500GB Crucial MX500 SSD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround. Feature Update to 23H2 by manually installing the Enablement Package.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro (and all my Hyper-V VMs).

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Win11 Pro Insider Beta, Dev and Canary, all as native boot vhdx.


    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro.
You might like to try the method I used to migrate a legacy/MBR install of Windows 10 from an old unsupported machine to my System One below, a new UEFI/GPT supported one, so that it could then be upgraded to Windows 11.

First make a Macrium Reflect image of the old machine.

Next do a clean install in UEFI mode of the same version of Windows 10 on the new machine, this formats the drive as GPT and sets up all the required partitions.

Then restore JUST the C: partition from the Reflect image to replace the one created by the clean install (you can resize the partition to fit during the restore, if required).

Finally use the Reflect rescue media's 'Fix Windows boot problems' too to build the correct BCD entry. Windows should now boot.
so in my case (already have the image).

1 - Wipe drive (I do not have another drive to install to)
2 - Install fresh W10 be sure it installs as GPT and not MBR
3 - Verify it boots into W10 ok
4 - Now restore old c drive from image in place of current c drive (ie this newly done W10 install)
5 - Once restored run the fix windows boot problems
6 - Boot to Windows 10
7 - Resize drive to get my d drive back on as well (specific to my case only of course)

**Key in all of this is to restore from the old image ONLY the C drive partition and not the entire drive -- correct?

How do I make sure W10 installs as GPT and not MBR?
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
Did you read my post #8?

- Use the MiniTool to convert the drive from MBR to GPT
- To make your drive 0 boot able, boot from a Win 10 or Win 11 installation drive and at the Windows Setup screen, press Shift+F10 simultaneously to open a command line prompt. Type:
Diskpart
list vol (take note of the windows partition letter)
sel select disk 0
select part 1
del part override
create part EFI size=100
format fs=FAT32 quick
assign letter=W
create part msr size=16
exit
bcdboot E:\Windows /s W: /f UEFI (replace E: with the windows partition letter)
exit
diskpart
select vol W
remove letter=W
exit
exit
 

My Computers

System One System Two

  • OS
    Windows 7 HP 64 - Windows 11 Pro - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 128G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 7 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    350 Mb/s
    Browser
    Firefox 64
**Key in all of this is to restore from the old image ONLY the C drive partition and not the entire drive -- correct?
correct, that's how I did it. The clean install creates the EFI partition and a Recovery partition, you just drop the old C: partition into it to replace the one from the clean install.
 

My Computers

System One System Two

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB Samsung EVO 870 SSD
    Internet Speed
    50 Mbps
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro (and all my Hyper-V VMs).

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Insider Beta, Dev and Canary, all as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro, and the Insider Canary build as a native boot .vhdx.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    8GB
    Graphics card(s)
    (integrated graphics) Intel HD Graphics
    Screen Resolution
    1366x768
    Hard Drives
    500GB Crucial MX500 SSD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround. Feature Update to 23H2 by manually installing the Enablement Package.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro (and all my Hyper-V VMs).

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 256GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro RTM and Win11 Pro Insider Beta, Dev and Canary, all as native boot vhdx.


    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro.
- Use the MiniTool to convert the drive from MBR to GPT
- To make your drive 0 boot able, boot from a Win 10 or Win 11 installation drive and at the Windows Setup screen, press Shift+F10 simultaneously to open a command line prompt. Type:
Diskpart
list vol (take note of the windows partition letter)
sel select disk 0
select part 1
del part override
create part EFI size=100
format fs=FAT32 quick
assign letter=W
create part msr size=16
exit
bcdboot E:\Windows /s W: /f UEFI (replace E: with the windows partition letter)
exit
diskpart
select vol W
remove letter=W
exit
exit

This was the process I read about on this forum and have tried it and will not boot after the conversion. I used a W10 Pro USB install drive
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop

My Computers

System One System Two

  • OS
    Windows 7 HP 64 - Windows 11 Pro - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 128G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 7 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    350 Mb/s
    Browser
    Firefox 64
Not clear what is going on there.

Have a look with another partition manager. Diskgenius free version and post screenshot of what it says.

I always use diskgenius to do the conversion.

Then make sure the 100mb partition is set to id C12A7328-F81F-11D2-BA4B-00A0C93EC93B and populate the 100mb partition using bcdboot command.


**********************************************************

Is there any message on the bsod screen you have had so far?
 
Last edited:

My Computers

System One System Two

  • OS
    Win7
    Computer type
    PC/Desktop
    CPU
    i5-8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7
    Computer type
    PC/Desktop
    CPU
    pentium g5400
    Motherboard
    gigabyte b365m ds3h
    Memory
    1x8gb 2400
    PSU
    xfx pro 450
This was the process I read about on this forum and have tried it and will not boot after the conversion. I used a W10 Pro USB install drive
You have first to convert the drive from MBR to GPT. If you do it right it will work.
 

My Computers

System One System Two

  • OS
    Windows 7 HP 64 - Windows 11 Pro - Lubuntu
    Computer type
    PC/Desktop
    Manufacturer/Model
    custom build
    CPU
    i5 6600K - 800MHz to 4400MHz
    Motherboard
    GA-Z170-HD3P
    Memory
    4+4G GSkill DDR4 3000
    Graphics Card(s)
    IG - Intel 530
    Monitor(s) Displays
    Samsung 226BW
    Screen Resolution
    1680x1050
    Hard Drives
    (1) -1 SM951 – 128GB M.2 AHCI PCIe SSD drive for Win 11
    (2) -1 WD SATA 3 - 1T for Data
    (3) -1 WD SATA 3 - 1T for backup
    (4) -1 BX500 SSD - 128G for Windows 7 and Lubuntu
    PSU
    Thermaltake 450W TR2 gold
    Keyboard
    Old and good Chicony mechanical keyboard
    Mouse
    Logitech mX performance - 9 buttons (had to disable some)
    Internet Speed
    500 Mb/s
    Browser
    Firefox 64
  • Operating System
    Windows 7 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Asus Q550LF
    CPU
    i7-4500U 800- 3000MHz
    Motherboard
    Asus Q550LF
    Memory
    (4+4)G DDR3 1600
    Graphics card(s)
    IG intel 4400 + NVIDIA GeForce GT 745M
    Sound Card
    Realtek
    Monitor(s) Displays
    LG Display LP156WF4-SPH1
    Screen Resolution
    1920 x 1080
    Hard Drives
    BX500 120G SSD for Windows and programs
    & 1T HDD for data
    Internet Speed
    350 Mb/s
    Browser
    Firefox 64
correct, that's how I did it. The clean install creates the EFI partition and a Recovery partition, you just drop the old C: partition into it to replace the one from the clean install.

Interesting - and it keeps all the data and doesn't cause the drive to revert to MBR? How do I make sure W10 installs to GPT and not MBR which I think is its default.

You have first to convert the drive from MBR to GPT. If you do it right it will work.
Yes I converted it with MPT first, then rebooted got BSD, then rebooted with W10 install USB went to command prompt and followed the steps you listed
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
You might like to try the method I used to migrate a legacy/MBR install of Windows 10 from an old unsupported machine to my System One in My Computers below, a new UEFI/GPT supported one, so that it could then be upgraded to Windows 11.

First make a Macrium Reflect image of the old machine.

Next do a clean install in UEFI mode of the same version of Windows 10 on the new machine, this formats the drive as GPT and sets up all the required partitions. If it says the drive is currently MBR and it can't install, then from a command prompt use Diskpart to convert it to GPT.

Then restore JUST the C: partition from the Reflect image to replace the one created by the clean install (you can resize the partition to fit during the restore, if required).

Finally use the Reflect rescue media's 'Fix Windows boot problems' too to build the correct BCD entry. Windows should now boot.

So far this is working out. I have the drive as GPT now with my old W10 install running as it should be. I am upgrading to W11 now and then will move my D drive back on afterwards. Let's hope all finishes up correctly and then I can get the other 2 PCs done in the same manner. Appreciate the help!
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop

Latest Support Threads

Latest Tutorials

Back
Top Bottom