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EFI Related Searches
Windows 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 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: Launch EaseUS Partition Master on PC
Click on "Partition Recovery" at the top of the main window.
Step 2: Select a hard disk to search for the lost partition(s)
Choose the hard drive disk or SSD where you lost partitions, and click "Scan".
Step 3: Wait for the scanning process to complete.
This program will scan the whole disk with two modes - "Quick Scan" and "Deep Scan" to find all lost partitions and data for you.
- Quick Scan will find your latest or recently deleted partition at a fast speed.
- Deep Scan will scan and find more and earlier deleted partitions.
- If the Quick Scan doesn't find your lost partition, wait patiently till the Deep Scan completes.
During or after the scan, you can double-click the partition marked as "Deleted" to check and view the partition content. If it contains your lost partition data, go to Step 4 and continue.
Step 4: Select and recover lost partitions
1. Select the lost partition, marked as "Deleted" with previous Labels, capacity etc, and click "Proceed" to continue.
2. Click "Recover Now" to confirm and restore the lost partition.
3. Click the "Execute Operation" button and click "Apply" to restore lost partition.
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.
Do You Need Specialized Services for System Boot Issues?
EaseUS also provides 1-on-1 remote assistance to fix the boot issue. If the solution above does not work for you, please contact our professionals via Email or LiveChat in this page. To ensure our professional assistance work, you are suggested to connect the unbootable system drive to a healthy computer when getting connected with us.
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.
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.
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Frequently Asked Questions
- Why Choose EaseUS Partition Master?
-
"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions." —PCWorld
"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available." —TECH ADVISOR
"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes." —Lifewire
- Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?
To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.
- Does EaseUS Partition Master license apply to multiple computers?
The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.
- What is the difference between EaseUS Partition Master Trial version and the Free version?
Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.
- Will it cause any data loss after resizing the partition in EaseUS Partition Master?
Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.
- What should I prepare before resizing the partition?
On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.
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About EaseUS Partition Master
All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.
Video Tutorial
How to Partititon a Hard Drive on Windows 10/8/7