No EFI System Partitition Was Found? 4 Quick Fixes!

While booting the computer, users may face problems due to the missing EFI system partition. Go through this article to fix the 'No EFI System Partition Was Found' error.

1. Fix 1. Use EaseUS Partition Master - Easy for Beginners
2. Fix 2. Recover the Lost EFI System Partition
3. Fix 3. Recreate an EFI System Partition
4. Fix 4. Check BIOS Settings

This article from EaseUS provides 4 fixes for No EFI System Partition Was Found error on PC and introduces what the EFI system partition is as well as how important it is.

Overview of EFI System Partition

However, before moving toward the solutions for the "No EFI System Partition Was Found" error, let's read about the importance of EFI partitions for your system.

1. What Is EFI System Partition?

You can interpret the ESP as the small partitions on the data storage device essential to rebooting your system smoothly. You won't be able to locate this partition directly in File Explorer as it doesn't have any designated drive letter. When your system uses UEFI firmware, this ESP partition is necessary to find and load the bootloader files for your OS.

2. Is EFI System Partition Necessary?

Other than that, the ESP also has diagnostic tools and recovery utilities to troubleshoot boot issues. So, it is necessary to have this partition on your system to avoid any system boot problems. Here, we will help you resolve the "No EFI System Partition Was Found" problem. Therefore, share this article to help others resolve this system boot error without hassle. 

How To Fix the "No EFI System Partition Was Found" Error?

Once you are familiar with the cause of this error, let's move forward to discuss solutions that can help you boot your PC. You can boot your operating system using these fixes through simple boot repair or adding new partitions. To avoid future complications, you can go through all these methods to fix the "No EFI System Partition Was Found" error.

Fix 1. Use EaseUS Partition Master

Users who don't know anything about EFI system partitions can simply access their operating systems through boot repair tools. You don't have to pass through the struggle of creating new partitions to solve this error using this method. For this purpose, you need to download EaseUS Partition Master Professional to successfully boot up the system.

Irrespective of the issue, this third-party tool will help you start Windows without any problem. Moreover, this boot repair tool will create a bootable media for your system to solve the "No EFI System Partition Was Found" error. With the help of this method, you can even solve the black screen and system crash issues that may be occurring due to the missing ESP. 

Here is how:

Step 1. Start EaseUS Partition Master after connecting the external drive/USB to your computer, go to "Bootable Media," and click "Create bootable media."

Step 2. Select an available USB Drive or CD/DVD and click "Create." You can also burn the Windows ISO file to the storage media.

Step 3. Connect the created bootable drive to the new computer and reboot the computer by pressing and holding F2/Del to enter the BIOS. Then, set the WinPE bootable drive as the boot disk and press F10 to exit.

Step 4. Boot the computer again and enter the WinPE interface. Then, open EaseUS Partition Master and click "Boot Repair" under the "Toolkit" option.

Step 5: Select the system you want to repair and click "Repair."

Step 6. Wait a moment, and you will receive an alert that the system has been successfully repaired. Click "OK" to complete the boot repair process.

When the EFI system partition is missing, you may need this Windows boot repair tool to boot your PC normally.

Fix 2. Recover the Lost EFI System Partition

If you want to permanently resolve this issue, you may need to recover the lost ESP in your device. The "Recover Partition" feature of EaseUS Partition Manager can help you in this regard. With its ability to recover any lost partition from your device, this tool will solve the "No EFI System Partition Was Found" problem. 

No matter if you have lost the EFI partition due to a Windows crash or virus attack, EaseUS Partition Master will be at your service to recover the ESP. In addition, users can check and find corrupted files beforehand using this tool to avoid any future complications.

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 going through these features, it is time to discuss the steps to carry out this EFI system partition recovery task using EaseUS Partition Master.

Fix 3. Recreate an EFI System Partition

Now, we will discuss some additional methods to solve the "No EFI System Partition Was Found" issue if you fail to implement the best methods discussed above. However, you need to have the technical knowledge to utilize this method to recreate the ESP. Without wasting any time, go through these steps to successfully create the EFI system partition to fix this error:

Step 1. Start the process by booting your computer with the help of Windows installation media. After accessing the first screen, tap the "Shift + F10" keys to access the Command Prompt utility tool on your system.

Step 2. Once you access this application, type all the following commands to shrink any particular partition to get unallocated space. After writing each command, hit the "Enter" key before writing the following command. 

• "diskpart"
• "list disk"
• "select disk 1" (Replace 1 with the disk name where you want to add the ESP.)
• "list partition"
• "select partition 2" (Write the partition name you plan to shrink in place of 2.)
• "shrink desired=100"

Upon applying all these commands, you can get 100MB of unallocated space for the ESP creation process.

Step 3. Moving forward, you have to write the commands pasted below and hit the "Enter" key after each of them to create the EFI system partition with the unallocated space.

• "create partition efi size=100"
• "format quick fs=fat32"
• "assign letter=S" (Users have the option to replace the letter "S" with other letters which are available for use.)
• "exit"

Step 4. Finally, using the following commands, you can create the BCDBoot store to copy and paste the boot file from the Windows partition to the ESP.

"bcdboot X:\windows /s S:"

(Here, you can replace X and S with the letters you have selected during the previous steps.)

Now, restart your computer to see if the "No EFI System Partition Was Found" problem is resolved. If you find this helpful method to resolve such an issue, we encourage you to share this article to help others successfully boot their operating systems.

Fix 4. Check BIOS Settings

You may also face this system boot problem when your computer is not set to the UEFI mode while getting restarted. To resolve this issue, you need to access the "BIOS" settings when booting your PC. The following steps will help you implement this method to fix the "No EFI System Partition Was Found" error:

Step 1. First, you need to restart your computer and press the BIOS keys while the system loads up to access the BIOS settings window. However, the BIOS key may vary according to the model and brand of your PC. You can try hitting the F2, F10, or Esc keys while your PC is booting to enter these settings.

Step 2. Upon accessing the setup, go to the "Boot Settings" window to proceed with this process. Choose the "UEFI" option from the "BIOS Boot Mode" dialog box to solve this issue.

Step 3. Moving forward, you need to press the "F10" and "Enter" keys to finalize the changes before exiting the BIOS Setup.

Conclusion

Throughout this article, we have explained multiple methods to fix the "No EFI System Partition Was Found" issue. You can take advantage of any of these methods to boot your system in a normal manner without any complications. However, EaseUS Partition Master is the best third-party tool for eliminating this problem. Through its boot repair and lost partition recovery features, users can apply different ways to resolve ESP-related issues.

EFI System Partition Missing FAQs

Users can get all the information they need to solve this issue after reading the article. However, we will still discuss some common information related to this process through these commonly asked questions.

1. Why is the EFI system partition missing?

Your system may be missing the ESP due to the accidental deletion of these system partitions. Corruption is also possible due to sudden power outages in these EFI partitions. Other than that, these errors may also appear due to the bad sectors present in the partition.

2. What if there is no EFI partition?

When your computer is missing the ESP, your system will fail to boot successfully. As we know, these system partitions are essential to boot your PC due to their ability to store UEFI boot loaders and drivers.

If you don't find these partitions, we recommend you recreate the ESP using Command Prompt. Moreover, you can use EaseUS Partition Master to solve the "No EFI System Partition Was Found" problem.

3. How to fix no EFI system partition found on Ubuntu?

When you are not able to boot your Ubuntu operating system, there is a possibility of the missing EFI system partitions. You can quickly fix this ESP-related issue using the steps explained below.

1. 1. Begin this process by booting your system using the Ubuntu USB drive. Afterward, hit the "Ubuntu without Installing" option to proceed with this process.
2. 2. Now, access the command prompt by hitting the "Shift + F10" keys and run the following command to mount the EFI partition.
3. "sudo mount /dev/sda1 /mnt"
4. 3. Moving forward, access the EFI directory with the "cd /mnt/EFI" command. Finally, you can rename the bootloader using the command prompt by entering "sudo mv grubx64.efi bootx64.efi" on this application.