Recover/Create EFI Partition Windows 11/10 When EFI Boot Partition Missing

EFI boot partition missing will cause your computer to have no boot partition to boot from, so you will need to create EFI partition in Windows 11/10, or recover missing EFI boot partition with third-party partition recovery software.

Windows boot partition missing

EFI boot partition missing or no EFI system partition was found error will cause your computer to have no boot partition to boot from, so you will need to create EFI partition in Windows 11/10, or recover missing EFI boot partition with third-party partition recovery software.

As we mentioned, the EFI partition is essential if you want to be able to boot up the operating system that you have installed on your internal hard drive. Unless you use an external hard drive to boot Windows OS rather than an internal one, you don't require an EFI partition to boot from the drive. Therefore, when the EFI boot partition in your computer accidentally gets deleted, feel no hesitate to follow the advice here to recover the deleted boot partition, or manually recreate the EFI boot partition by yourself.

Method 1. Recover EFI partition with partition recovery software 

If you prefer a simple method to restore deleted or lost EFI partition in Windows PC, EaseUS Partition Master supports you to restore lost EFI partitions with ease in Windows 11/10/8/7. You may directly download this partition recovery software and follow the simple steps to restore EFI boot partition.

First of all, on a working computer, create EaseUS Partition Master WinPE bootable disk so that you can boot your computer from a WinPE environment to be able to perform the EFI partition recovery.

Next, after you can boot the computer into a normal state, it's time to restore lost EFI boot partition now.

How to automatically restore EFI boot partition Windows 11/10

Step 1. Open EaseUS Partition Master and click "Partition Recovery". Select the target disk with your lost partition and click "New Scan".

Step 2. Wait patiently to let the software execute "Quick Scan" and "Full Scan" operation. It will mark your deleted partition as "lost" as the Status section. Select the lost partition, and click "Recover".

You can also double click on the partition you're looking for to preview its content and click "OK" to confirm.

Step 3. Wait patiently and click "Done" when the partition recovery process completes.

After all the process, now your boot EFI partition is restored. You can check or redownload boot files into the EFI partition, set the computer to boot from your restored EFI partition again in BIOS. Reboot your PC and then you can continue using your computer again.

Method 2. Create EFI partition Windows 11/10 using CMD

Most likely, users with some computer skills are able to recreate an EFI boot partition by themselves. 

How to manually create EFI partition Windows 11/10

Step 1. Boot PC with Windows 11/10/8/7 installation media > press SHFIT + F10 on the first screen to bring up Command Prompt.

Step 2. Type the following commands and click Enter each time:

    diskpart
    list disk
    select disk # Note: Select the disk where you deleted the EFI System partition.
    list partition
    create partition efi
    format quick fs=fat32
    list partition
    list volume Note: Note the volume letter where the Windows OS is installed.

    exit

    bcdboot X:\windows Note: Replace "X" with the volume letter of the Windows OS partition.

BCDBoot copies the boot files from the Windows partition to the EFI System partition and creates the BCD store in the same partition.

Now you can remove the Windows installation media and restart the computer.