Install Windows 11 on an unsupported computer


looks like quite a lot of free space on that partition.

not sure why it is called system.

check the partition type
 

My Computers

System One System Two

  • OS
    Win7,Win11
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    PC/Desktop
    CPU
    i7-9700
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x16gb 3600mhz
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    benq gw2480
    PSU
    bequiet pure power 11 400CM
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    i5-8400
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    2x8gb 3200
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    xfx pro 450
LuchaEnErrrores said:
And it's difficult to take a screenshot because my phone's camera is malfunctioning.
Click to expand...

If you're unable to use your phone camera, you can take a screenshot directly in Windows by pressing Win+Shift+S and capturing the upgrade error message.

SIW2 said:
looks like quite a lot of free space on that partition.
Click to expand...

So the OP's issue is not with the EFI system partition.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X3D
    Motherboard
    ASRock B650E Taichi Lite
    Memory
    Kingston FURY Beast 64GB (2x32GB) DDR5 6000MT/s
    Graphics Card(s)
    ASUS TUF Gaming Radeon RX 9070 OC Edition 16GB GDDR6
    Hard Drives
    Solidigm P44 Pro 2TB M.2 NVMe SSD
  • Operating System
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo Legion Pro 7i Gen 10 16"
    CPU
    Intel Core Ultra 9 275HX
    Memory
    64GB (2x 32GB) DDR5-6400
    Graphics card(s)
    NVIDIA GeForce RTX 5080 16GB GDDR7 Laptop GPU
    Hard Drives
    2x 1TB M.2 NVMe SSD (SK Hynix)
No, that is why I asked the op to show the size. Must be something else.

check the partition type.
 

My Computers

System One System Two

  • OS
    Win7,Win11
    Computer type
    PC/Desktop
    CPU
    i7-9700
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x16gb 3600mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7,win11
    Computer type
    PC/Desktop
    CPU
    i5-8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200
    PSU
    xfx pro 450
Celery said:
Si no puedes usar la cámara de tu teléfono, puedes tomar una captura de pantalla directamente en Windows presionando Win+Shift+S y capturando el mensaje de error de actualización.
Click to expand...
That's what I did hahahaha.
 

My Computer

System One

  • OS
    Windows 10/Windows 11
    Computer type
    PC/Desktop
SIW2 said:
Needs unallocated space to its right to resize into.

You would probabaly need to shrink the windows partition from the left and move the msr to create that unallocated space

View attachment 173594

I have extended the above ESP to 300mb

next create MSR from the unallocated space if there isnt already one

I like diskgenius but it is a bit technical looking . you might find one of the others easier

post a screen shot from a 3rd party partition manager
Click to expand...
What I did after creating a partition on that drive was that it wouldn't boot into Windows and only sent me to the BIOS. After using Hiren's BootCD PE to rejoin the partition, it did boot into Windows again, but then it restarted on its own and wouldn't let me into Windows again. I think it's your fault.
 

My Computer

System One

  • OS
    Windows 10/Windows 11
    Computer type
    PC/Desktop
There are several steps. One of them being the bcdboot command after partition changes and before attempting to boot back into windows.

You can try that step now from booted media.
 

My Computers

System One System Two

  • OS
    Win7,Win11
    Computer type
    PC/Desktop
    CPU
    i7-9700
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x16gb 3600mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7,win11
    Computer type
    PC/Desktop
    CPU
    i5-8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200
    PSU
    xfx pro 450
Boot from the Windows installation USB flash drive. If the USB appears twice in the boot menu (once with the "UEFI" prefix and once without), select the entry for your USB that has the "UEFI" prefix. This ensures that bcdboot defaults to installing UEFI boot files.

Run the following commands at the Windows Recovery Environment (WinRE) command prompt.

diskpart
list volume (find the Windows partition letter)
exit

bcdboot x:\windows

Replace "x" with the Windows partition letter.

The bcdboot command automatically identifies the FAT32-formatted EFI system partition, copies the required UEFI boot files from the Windows partition to it, and creates a new Boot Configuration Data (BCD) store on that partition.

learn.microsoft.com

BCDBoot Command-Line Options

BCDBoot Command-Line Options
learn.microsoft.com
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X3D
    Motherboard
    ASRock B650E Taichi Lite
    Memory
    Kingston FURY Beast 64GB (2x32GB) DDR5 6000MT/s
    Graphics Card(s)
    ASUS TUF Gaming Radeon RX 9070 OC Edition 16GB GDDR6
    Hard Drives
    Solidigm P44 Pro 2TB M.2 NVMe SSD
  • Operating System
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo Legion Pro 7i Gen 10 16"
    CPU
    Intel Core Ultra 9 275HX
    Memory
    64GB (2x 32GB) DDR5-6400
    Graphics card(s)
    NVIDIA GeForce RTX 5080 16GB GDDR7 Laptop GPU
    Hard Drives
    2x 1TB M.2 NVMe SSD (SK Hynix)
Did you run the bcdboot command? On your computer, it is probably:

bcdboot c:\windows

Did you get "Boot files successfully created" or "Failure when attempting to copy boot files"?

You can also try the following instructions:


The EFI system partition does not have a volume letter assigned by default, but you can temporarily assign a letter using DiskPart.

Code: 
diskpart
list volume      (find the EFI system partition number)
select volume #  (use the EFI system partition number)
assign letter=z
list volume      (find the Windows partition letter)
exit

bcdboot x:\windows /s z: /f uefi

- replace "x" with the Windows partition letter
- /s z: means your EFI system partition, which you assigned above
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X3D
    Motherboard
    ASRock B650E Taichi Lite
    Memory
    Kingston FURY Beast 64GB (2x32GB) DDR5 6000MT/s
    Graphics Card(s)
    ASUS TUF Gaming Radeon RX 9070 OC Edition 16GB GDDR6
    Hard Drives
    Solidigm P44 Pro 2TB M.2 NVMe SSD
  • Operating System
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo Legion Pro 7i Gen 10 16"
    CPU
    Intel Core Ultra 9 275HX
    Memory
    64GB (2x 32GB) DDR5-6400
    Graphics card(s)
    NVIDIA GeForce RTX 5080 16GB GDDR7 Laptop GPU
    Hard Drives
    2x 1TB M.2 NVMe SSD (SK Hynix)
If there is only one esp it shouldn't need to be specified

the device path can be used instead of assigning a letter

dg-device-path.webp
 

My Computers

System One System Two

  • OS
    Win7,Win11
    Computer type
    PC/Desktop
    CPU
    i7-9700
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x16gb 3600mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7,win11
    Computer type
    PC/Desktop
    CPU
    i5-8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200
    PSU
    xfx pro 450
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