How to Create and Delete EFI System Partition in Windows

What is EFI System Partition?

The EFI System Partition (ESP) is a type of partition on a Windows computer that creates several regions on the PC’s hard disk so that information stored on the different partitions can be managed separately by the Windows operating system.

Windows computer uses it because they contain the following four main components:

Boot loaders;

Device drivers;

System utilities;

Data files. 

The EFI is most used by systems that adhere to the Unified Extensive Firmware Interface (UEFI). The UEFI firmware works during the process of booting a computer to load files stored on the ESP in order to start installed operating system and system utilities. 

It’s the function of the boot loaders to ensure that all the necessary files and utilities have been booted before the completion of the booting sequence. The ESP ensures that all errors encountered during system booting phase are resolved. It does this by working with the boot loader to offer users good experiences during system startup.

How to Delete EFI System Partition (ESP)

EFI system partition is very important in booting the installed OS and system utilities of the hard disk. However, if you’re using a hard disk with EFI system partitions created for the macOS, and you now want to install Windows to replace macOS, then you need to delete the old EFI system partition and create a new one for Windows. 

Here is how to delete EFI system partition:

Step 1. First, you need to identify the disk where the EFI partition is located.

• Open Disk Management by pressing “Windows key + R”. Type “diskmgmt.msc” and press “Enter”.

• In Disk Management, locate the EFI system partition, and close the disk management.

Step 2. Delete the EFI partition with DISKPART tool

• Open the elevated command prompt by right-clicking on the “Start” menu. From the pop-up menu, choose “Command Prompt (Admin)”.

• Give each of the following commands and click “Enter”.

  Diskpart

  List disk

  Select disk number

  Clean

Once the cleaning process is complete, you’ll get a notification saying: “DiskPart succeeded in cleaning the disk”. Click “exit” to close the DiskPart tool, and then close the command window.

How to Create EFI System Partition (ESP)

Step 1. Boot your PC with Windows installation media. Then, press “Shift + f10” on the first screen to launch the Command Prompt. 

Step 2. Run the following commands and click enter at the end:

• Diskpart

• List disk

• Select disk

• List partition

• Create partition efi

• Format quick fs=fat32

• List partition

• List volume (i.e. the volume letter where the Windows OS is installed)

• Exit

• bcdboot X:/windows (Replace “X” with the Volume letter of the Windows OS partition).

Step 3. Now, you can remove the Windows installation media and restart your PC.

How to Recover Lost Data from EFI System Partition

iMyFone AnyRecover is the right tool for recovering data lost in your Windows or Mac PC during EFI system partition. This tool can be of immeasurable assistance in helping you recover files from internal and external hard drives, removable USB flash drives, smartphones, media device players, camcorders, memory cards, and digital cameras.

Steps to recover lost data:

Step 1. Download and install AnyRecover. Run it and select a disk under the “I can't find my partitions” tab.

Step 2. Select the partition that you have lost data, and click “Scan”.

Step 3. It will begin an all-round scanning process. It will take some miniutes for scanning process.

Step 4. When the scanning is completed, all files will be listed out in file types and folders. You can preview lost files. Then select the lost data you want to recover by clicking “Recover” button.

Note: Do NOT save recovered data to the location where you have lost data.

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