The EFI system partition (ESP) is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers adhering to the Unified Extensible Firmware Interface (UEFI).
An ESP contains the boot loaders or kernel images for all installed operating systems (which are contained in other partitions), device driver files for hardware devices present in a computer and used by the firmware at boot time, system utility programs that are intended to be run before an operating system is booted, and data files such as error logs ref. An EFI system partition is usually protected and locked by the Windows operating systems to prevent and avoid accidental deletion of these partitions. That’s why you can’t delete EFI partition using Disk Management tool.
Deleting the partition
Windows Key + Rto open the run dialogue box.
OKto open command prompt window.
list diskto display all the disks of your computer.
select disk nto identify which disk you need to work with.
list partitionto display all the volumes on the hard drive.
select partition nto identify which partition you want to remove.
delete partition overrideto remove the EFI partition.
- You will see this message:
DiskPart successfully deleted the selected partition
Enterto close the window.