EFI Related Searches

Windows boot partition missing

Boot.ini is a text file located at the root of the system partition, typically c: Boot.ini. Boot.ini stores boot options for computers with BIOS firmware, traditionally, computers with IA-32-based and x64-based processors. This is an OEM self built machine with Windows 10 installed on it. The windows folder is on the C drive. When I remove the I drive from this machine and then try to boot up with the C drive selected in the bios, I just get a black screen with a blinking curor. Thanks again everyone for your help.

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 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 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 10

Step 1. Open EaseUS Partition Master and click 'Partition Recovery' on the top menu. A new window will appear and ask you to select a disk to start searching for lost partition(s). So choose the desired disk and click 'Scan'.

Step 2. A quick scan will immediately start. You can pause the scanning process by clicking 'Proceed' at any time when the lost partition shows up to start your data recovery.

Windows 10 Boot Manager File Location

You can double click on the partition you're looking for to preview its content.

Step 3. As soon as the lost partition and data has been found, click 'Recover Now'. Or else, go on with 'Continue Scanning' for more lost data recovery.

Step 4. After the recovery process, click 'Finish'. Your lost partition should reappear in your drive.

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.

Windows 10 Boot.ini File Location

Method 2. Create EFI partition Windows 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 10

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

Boot Log File Location Windows 10

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 volumeNote: Note the volume letter where the Windows OS is installed.

exit

bcdboot X:windowsNote: 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.

Windows 10 Uefi Boot File Location

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

Windows 10 Boot Logo File Location