HELP!!! Unable to boot win after efi partition resizing


Can you post a screenshot of the "Select location to install Windows 11" screen from the Windows 11 installation media?

It should show how much free space is available on the Windows partition.

Below is an example of the "Select location to install Windows 11" screen from a working Windows 11 laptop.

View attachment 158114
 

Attachments

  • 17668459242182069513066095784774.webp
    17668459242182069513066095784774.webp
    1.8 MB · Views: 1

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
What partitions, if any, did it find or display? Did you click the FILES tab ?

You could also get it to scan for lost files just to see if it finds any. The free version won't recover them but it might indicate if recovery is possible. In which case you could try some free file recovery tools like recuva, testdisk, puran etc
It dispslayed the partitions, tried recover files but nothing
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
Do i have a chance to recover the drive or no? So should i go ahead and format the drive ?
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
If your Windows partition is O.K. and not damaged while moving ahead to leave space for EFI partition resizing, then you can repopulate the EFI system partition easily.

Boot to the USB recovery drive or USB Windows bootable installation drive or WinRE, open Command Prompt.

Diskpart

List disk

Find current Windows installation disk number, say 0.

Select disk 0

list partition

Select partition x (where x is the EFI partition, which is damaged due to resizing)

format quick fs=fat32 label="System"

assign letter="S"

set id="c12a7328-f81f-11d2-ba4b-00a0c93ec93b"

list vol (Now Vol S is EFI system partition. Find Vol letter of Windows partition. It could be C: or D: or what)

exit (you exit Diskpart)

In Command Prompt, give the following command

bcdboot C:\Windows /S /F UEFI S: (where C: is your Windows partition from above List vol command Change if different.)

Reboot now. Windows may start if Windows resizing did not cause any damage.

Hope this helps.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-4790
    Motherboard
    Asus H97 Pro Gamer with add-on TPM1.2 module
    Memory
    Teams DDR3-1600 4x4 GB
    Graphics Card(s)
    MSI Nvidia GeForce GTX 1050Ti
    Sound Card
    Realtek ALC1150
    Monitor(s) Displays
    Dell P2425D
    Screen Resolution
    2560 by 1440 pixels
    Hard Drives
    Corsair NVMe M.2 Core XT 1000 GB (Windows 11 v.25H2); Samsung SATA Evo 870 500 GB (Windows 11 v.25H2);
    PSU
    Corsair HX850
    Case
    Gigabyte Solo 210
    Cooling
    Zalman CNPS7X Tower
    Keyboard
    Microsoft AIO Wireless (includes touchpad)
    Mouse
    HP S1000 Plus Wireless
    Internet Speed
    500 Mb fiber optic
    Browser
    Chrome; MS Edge
    Antivirus
    Windows Defender
  • Operating System
    MacOS 12 Monterey
    Computer type
    Laptop
    Manufacturer/Model
    Apple Macbook Air
    CPU
    Intel Core i5
    Memory
    8 GB
    Graphics card(s)
    Intel integrated
    Screen Resolution
    1440 by 900 pixels
    Hard Drives
    128 GB
    Keyboard
    Built-in
    Mouse
    Microsoft Wireless
    Internet Speed
    802.11 ac
    Browser
    Chrome; Safari
    Antivirus
    N/A
If your Windows partition is O.K. and not damaged while moving ahead to leave space for EFI partition resizing, then you can repopulate the EFI system partition easily.

Boot to the USB recovery drive or USB Windows bootable installation drive or WinRE, open Command Prompt.

Diskpart

List disk

Find current Windows installation disk number, say 0.

Select disk 0

list partition

Select partition x (where x is the EFI partition, which is damaged due to resizing)

format quick fs=fat32 label="System"

assign letter="S"

set id="c12a7328-f81f-11d2-ba4b-00a0c93ec93b"

list vol (Now Vol S is EFI system partition. Find Vol letter of Windows partition. It could be C: or D: or what)

exit (you exit Diskpart)

In Command Prompt, give the following command

bcdboot C:\Windows /S /F UEFI S: (where C: is your Windows partition from above List vol command Change if different.)

Reboot now. Windows may start if Windows resizing did not cause any damage.

Hope this helps.
It fails in last command fails to copy boot files + after reboot now boots to screen saying boot device not found please install an operating system on your device its related to hp, easeus partition manager was supposed to do 3 operations 1st one moving data and it failed after it
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
Does your HP Omen notebook have Sure Start ?
 

My Computers

System One System Two

  • OS
    Windows 11 Pro build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-4790
    Motherboard
    Asus H97 Pro Gamer with add-on TPM1.2 module
    Memory
    Teams DDR3-1600 4x4 GB
    Graphics Card(s)
    MSI Nvidia GeForce GTX 1050Ti
    Sound Card
    Realtek ALC1150
    Monitor(s) Displays
    Dell P2425D
    Screen Resolution
    2560 by 1440 pixels
    Hard Drives
    Corsair NVMe M.2 Core XT 1000 GB (Windows 11 v.25H2); Samsung SATA Evo 870 500 GB (Windows 11 v.25H2);
    PSU
    Corsair HX850
    Case
    Gigabyte Solo 210
    Cooling
    Zalman CNPS7X Tower
    Keyboard
    Microsoft AIO Wireless (includes touchpad)
    Mouse
    HP S1000 Plus Wireless
    Internet Speed
    500 Mb fiber optic
    Browser
    Chrome; MS Edge
    Antivirus
    Windows Defender
  • Operating System
    MacOS 12 Monterey
    Computer type
    Laptop
    Manufacturer/Model
    Apple Macbook Air
    CPU
    Intel Core i5
    Memory
    8 GB
    Graphics card(s)
    Intel integrated
    Screen Resolution
    1440 by 900 pixels
    Hard Drives
    128 GB
    Keyboard
    Built-in
    Mouse
    Microsoft Wireless
    Internet Speed
    802.11 ac
    Browser
    Chrome; Safari
    Antivirus
    N/A

My Computer

System One

  • OS
    Win11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Asus Home built
    CPU
    i9-13900
    Motherboard
    ASUS Strix Z790-H
    Memory
    64 GB
    Graphics Card(s)
    Nvidia RTX 5070 TI OC
    Monitor(s) Displays
    Sony 55"
    Hard Drives
    SSD
    PSU
    850 watt EVGA
    Case
    Cooler Master Haf 932
    Cooling
    CoolerMaster
    Keyboard
    RedDragon
    Mouse
    CoolerMaster
    Internet Speed
    300/300
    Antivirus
    Defender
    Other Info
    VR, Virtual Reality
Idk what you mean but i press ESC & boot to bios startup menu
If your firmware has HP Sure Start technology, then you can not write to EFI system partition. Sure Start protects EFI partition and the files in that partition. I have HP EliteBook and it has Sure Start. I cannot even update Windows certificate CA 2023. I am waiting for a BIOS update from HP in order to be able to update my notebook to the new certificate. HP said a BIOS update is targeted to be released by the end of December 2025. But nothing till now.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-4790
    Motherboard
    Asus H97 Pro Gamer with add-on TPM1.2 module
    Memory
    Teams DDR3-1600 4x4 GB
    Graphics Card(s)
    MSI Nvidia GeForce GTX 1050Ti
    Sound Card
    Realtek ALC1150
    Monitor(s) Displays
    Dell P2425D
    Screen Resolution
    2560 by 1440 pixels
    Hard Drives
    Corsair NVMe M.2 Core XT 1000 GB (Windows 11 v.25H2); Samsung SATA Evo 870 500 GB (Windows 11 v.25H2);
    PSU
    Corsair HX850
    Case
    Gigabyte Solo 210
    Cooling
    Zalman CNPS7X Tower
    Keyboard
    Microsoft AIO Wireless (includes touchpad)
    Mouse
    HP S1000 Plus Wireless
    Internet Speed
    500 Mb fiber optic
    Browser
    Chrome; MS Edge
    Antivirus
    Windows Defender
  • Operating System
    MacOS 12 Monterey
    Computer type
    Laptop
    Manufacturer/Model
    Apple Macbook Air
    CPU
    Intel Core i5
    Memory
    8 GB
    Graphics card(s)
    Intel integrated
    Screen Resolution
    1440 by 900 pixels
    Hard Drives
    128 GB
    Keyboard
    Built-in
    Mouse
    Microsoft Wireless
    Internet Speed
    802.11 ac
    Browser
    Chrome; Safari
    Antivirus
    N/A
Please get into your BIOS setup and check if you have Sure Start under Security section (or elsewhere). Normally, when you start your HP notebook (cold boot and not from Windows Fast Start), you are greeted with HP Sure Start page.

6.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-4790
    Motherboard
    Asus H97 Pro Gamer with add-on TPM1.2 module
    Memory
    Teams DDR3-1600 4x4 GB
    Graphics Card(s)
    MSI Nvidia GeForce GTX 1050Ti
    Sound Card
    Realtek ALC1150
    Monitor(s) Displays
    Dell P2425D
    Screen Resolution
    2560 by 1440 pixels
    Hard Drives
    Corsair NVMe M.2 Core XT 1000 GB (Windows 11 v.25H2); Samsung SATA Evo 870 500 GB (Windows 11 v.25H2);
    PSU
    Corsair HX850
    Case
    Gigabyte Solo 210
    Cooling
    Zalman CNPS7X Tower
    Keyboard
    Microsoft AIO Wireless (includes touchpad)
    Mouse
    HP S1000 Plus Wireless
    Internet Speed
    500 Mb fiber optic
    Browser
    Chrome; MS Edge
    Antivirus
    Windows Defender
  • Operating System
    MacOS 12 Monterey
    Computer type
    Laptop
    Manufacturer/Model
    Apple Macbook Air
    CPU
    Intel Core i5
    Memory
    8 GB
    Graphics card(s)
    Intel integrated
    Screen Resolution
    1440 by 900 pixels
    Hard Drives
    128 GB
    Keyboard
    Built-in
    Mouse
    Microsoft Wireless
    Internet Speed
    802.11 ac
    Browser
    Chrome; Safari
    Antivirus
    N/A
Please get into your BIOS setup and check if you have Sure Start under Security section (or elsewhere). Normally, when you start your HP notebook (cold boot and not from Windows Fast Start), you are greeted with HP Sure Start page.

View attachment 158143
In omen setup utility no anything stating sure start
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
In omen setup utility no anything stating sure start
Then most probably, your Windows partition is damaged during moving this partition forward to make space for EFI system partition. You could make a new partition for EFI at the end of your disk drive because EFI partition place is not important. You could even delete Recovery partition and make it EFI partition. But it is too late, I believe. If you please, you can start clean installation of Windows or wait for other members' replies. There are very knowledgeable members here but it's Christmas time and weekend.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-4790
    Motherboard
    Asus H97 Pro Gamer with add-on TPM1.2 module
    Memory
    Teams DDR3-1600 4x4 GB
    Graphics Card(s)
    MSI Nvidia GeForce GTX 1050Ti
    Sound Card
    Realtek ALC1150
    Monitor(s) Displays
    Dell P2425D
    Screen Resolution
    2560 by 1440 pixels
    Hard Drives
    Corsair NVMe M.2 Core XT 1000 GB (Windows 11 v.25H2); Samsung SATA Evo 870 500 GB (Windows 11 v.25H2);
    PSU
    Corsair HX850
    Case
    Gigabyte Solo 210
    Cooling
    Zalman CNPS7X Tower
    Keyboard
    Microsoft AIO Wireless (includes touchpad)
    Mouse
    HP S1000 Plus Wireless
    Internet Speed
    500 Mb fiber optic
    Browser
    Chrome; MS Edge
    Antivirus
    Windows Defender
  • Operating System
    MacOS 12 Monterey
    Computer type
    Laptop
    Manufacturer/Model
    Apple Macbook Air
    CPU
    Intel Core i5
    Memory
    8 GB
    Graphics card(s)
    Intel integrated
    Screen Resolution
    1440 by 900 pixels
    Hard Drives
    128 GB
    Keyboard
    Built-in
    Mouse
    Microsoft Wireless
    Internet Speed
    802.11 ac
    Browser
    Chrome; Safari
    Antivirus
    N/A
OP like i said we have no clue what kind of modification made to the hard disk, it's best to recover your files and reinstall Windows 11.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Pavilion
    CPU
    AMD Ryzen 7 5700G
    Motherboard
    Erica6
    Memory
    Micron Technology DDR4-3200 16GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3060
    Sound Card
    Realtek ALC671
    Monitor(s) Displays
    Samsung SyncMaster U28E590
    Screen Resolution
    3840 x 2160
    Hard Drives
    SAMSUNG MZVLQ1T0HALB-000H1
Then most probably, your Windows partition is damaged during moving this partition forward to make space for EFI system partition. You could make a new partition for EFI at the end of your disk drive because EFI partition place is not important. You could even delete Recovery partition and make it EFI partition. But it is too late, I believe. If you please, you can start clean installation of Windows or wait for other members' replies. There are very knowledgeable members here but it's Christmas time and weekend.
Hmm ok, i think hope to get my files back is pretty low or zero, easeus partition manager is whom to blame for all this
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
OP like i said we have no clue what kind of modification made to the hard disk, it's best to recover your files and reinstall Windows 11.
In windows all was normal & working, i shrinked some space from C drive using disk mgmt, then using easeus PM i extended the efi partition to add the unallocated space to it so it asked for a reboot i rebooted & easeus said it will do 3 operations after 1 operation which was moving data (idk why but i kept it) it returned with a failure error (cant mount volume or something) then devicie became unbootable, i opened cmd in winre, diskpart commands i noticed the Fs of the windows partition is unknown & it have no name then tried some bcd commands but still nothing, then i ran chkdsk command after it the name & fs of the partition came back, thats it all, idk if there is still a chance to recover the partition or no & im forced to reisntall windows from scratch
 

My Computer

System One

  • OS
    11
    Computer type
    Laptop
    Manufacturer/Model
    HP
It fails in last command fails to copy boot files
The bcdboot tool copies the required UEFI boot files from an existing Windows installation to the EFI system partition. If Windows is missing or corrupted, this process will fail.

 

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)
Well if you can connect the hard drive to different PC you can try to undelete the deleted partitions.

In this informative video, i will guide you through the process of recovering a deleted or unallocated partition using TestDisk, a powerful data recovery software. You will learn step-by-step instructions on how to effectively utilize TestDisk to restore lost partitions and recover valuable data.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Pavilion
    CPU
    AMD Ryzen 7 5700G
    Motherboard
    Erica6
    Memory
    Micron Technology DDR4-3200 16GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3060
    Sound Card
    Realtek ALC671
    Monitor(s) Displays
    Samsung SyncMaster U28E590
    Screen Resolution
    3840 x 2160
    Hard Drives
    SAMSUNG MZVLQ1T0HALB-000H1
Really dumb question, where are your image backups? Surely, you did a backup before embarking on this adventure, right?
 

My Computers

System One System Two

  • OS
    Win 11 Pro 25H2, Build 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Brew
    CPU
    Intel Core i5 14500
    Motherboard
    Gigabyte B760M G P WIFI
    Memory
    64GB DDR4
    Graphics Card(s)
    GeForce RTX 4060
    Sound Card
    Chipset Realtek
    Monitor(s) Displays
    LG 45" Ultragear, Acer 24" 1080p
    Screen Resolution
    5120x1440, 1920x1080
    Hard Drives
    Crucial P310 2TB 2280 PCIe Gen4 3D NAND NVMe M.2 SSD (O/S)
    Silicon Power 2TB US75 NVMe PCIe Gen4 M.2 2280 SSD (backup)
    Crucial BX500 2TB 3D NAND (2nd backup)
    Seagate 4TB Ironwolf, rotating HDD archive files
    External off-line backup Drives: 2 NVMe 4TB drives in external enclosures
    PSU
    Thermaltake Toughpower GF3 750W
    Case
    LIAN LI LANCOOL 216 E-ATX PC Case
    Cooling
    Lots of fans!
    Keyboard
    Microsoft Comfort Curve 2000
    Mouse
    Logitech G305
    Internet Speed
    Verizon FiOS 1GB
    Browser
    Firefox
    Antivirus
    Malware Bytes & Windows Defender Security
  • Operating System
    Win 11 Pro 25H2, Build 26200.8524
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Brew
    CPU
    Intel Core i5 14400
    Motherboard
    Gigabyte B760M DS3H AX
    Memory
    32GB DDR5
    Graphics card(s)
    Intel 700 Embedded GPU
    Sound Card
    Realtek Embedded
    Monitor(s) Displays
    27" HP 1080p
    Screen Resolution
    1920x1080
    Hard Drives
    Crucial P310 2TB 2280 PCIe Gen4 eD NAND PCIe SSD
    Samsung EVO 990 2TB NVMe Gen4 SSD
    Samsung 2TB SATA SSD
    PSU
    Thermaltake Smart BM3 650W
    Case
    Okinos Micro ATX Case
    Cooling
    Fans
    Keyboard
    Microsoft Comfort Curve 2000
    Mouse
    Logitech G305
    Internet Speed
    Verizon FiOS 1GB
    Browser
    Firefox
    Antivirus
    Malware Bytes & Windows Defender Security
Back
Top Bottom