What’s EFI system partition?
Usually, if you successfully install Windows operating system on GPT disk of your
computer, there will be an EFI system partition containing important contents, such
as the boot loader programs for installed OS, device driver files for devices
present in a computer that are used by the firmware at boot time, system utility
programs that are intended to be run before an OS is booted, and data files as error
logs. You may conclude that, an EFI system partition is important to guarantee
that the Windows OS is bootable, and this is true. So it is protected and locked by
the Windows OS in case of accidentally deleting. Of course, you still have
reasons to delete EFI system partition, and sometimes you need to format the EFI
system partition as FAT32.
Why need to format the EFI system partition as FAT32?
There is a situation that when you try to install Windows 10 on your Windows 8.1,
unfortunately, you get error as “EFI partition is NEFS formatted and you need
to format it by FAT32 and restart system”. This happens when you install
Windows from a USB drive which is formatted as an EFI system
However, you don’t need to worry, just do what you have been notified -- format the
EFI system partition as FAT32, and problem will be solved. You can finish job with
DISKPART command line tool, but do remember to backup before
processing (the process will involve wiping the drive). Or you can use free AOMEI Partition Assistant to format the EFI system
partition as FAT32.
How to format EFI system partition as FAT32?
Here, we’ll introduce the two ways to you, and you can make a choice by yourself.
Method 1: Format with DISKPART
1. Run DISKPART in a command prompt window.
2. Type list disk and hit enter.
3. Identify your drive (disk 2, for example), and type disk 2.
4. Now enter the following commands:
attributes disk clear readonly > clean > convert mbr > create partition
primary > select part 1 > format fs=fat32 quick > assign letter (letter)
> list volume
5. Type exit and hit enter to close the window.
Method 2: Format with AOMEI Partition Assistant
1. Download, install and launch AOMEI
Partition Assistant Standard.
2. Right click the EFI system partition, and select “Format Partition”.
3. In pop-out window, choose file system as FAT32, and click “OK”.
4. Now you can preview the result, and don’t forget to click “Apply”.
Now you see, you can easily format the EFI system partition as FAT32 with AOME
Partition Assistant due to its intuitive interface and powerful feature. Also, you
know how to format the EFI system partition as FAT32 with DISKPART. Then, make your