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How to Resize EFI System Partition on Windows 10/8/7

Updated on Dec 11, 2018 by Daisy to Partition Master

Download EaseUS Partition Master to resize (shrink or extend) EFI system partition in Windows 10/8/7/XP/Vista. Its resize/move partition feature now fully enables you to extend EFI partition and shrink EFI system partition on GPT disk easily.

Need help to extend EFI system partition in Windows 10

"How do you make the EFI partition on your system bigger without losing data? My EFI is 99MB large, and I need it to be at least 200MB so that I can install Mac on this PC. I already have Windows 10 installed. The built-in Windows 10 Disk Management tool won't allow me to operate on the EFI partition because the extend volume option is grayed out."

The EFI system partition (ESP) is a partition on a data storage device, usually an HDD or SSD that is used by computers adhering to the Unified Extensive Firmware (UEFI). ESP contains the bootloaders or kernel images for all installed operating systems, so users are not allowed to operate on such a partition easily. However, sometimes resizing EFI partition is demanded, it's significant to have a partition manager program that can help realize the goal, meanwhile, with a simple solution.

Download EaseUS Partition Master to extend or shrink EFI partition freely

To meet the huge demand of being able to resize EFI partition freely in the Windows operating system, EaseUS Partition Master is lately optimized and the new version now fully supports operation on EFI system partition. Click to learn in detail about the newest partition magic software that gives you the best experience to deal with your hard drive partitions, including the EFI partition, system partition, system reserved partition, and OEM partition.

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 Windows 10 is supported

How to resize EFI partition with EaseUS Partition Master:

Make sure the EFI partition is on a GPT disk. If not, convert MBR disk to GTP disk before further operation. After that, you can resize your partition by shrinking or extending it. The guide below will show you how to shrink a partition. (The following steps are performed on an MBR disk. You can apply the same steps to resize your EFI partition.)


Step 1: Install and launch EaseUS Partition Master

On the main window, right-click on the partition that you want to shrink and select "Resize/Move".

Run EaseUS Partition Master

Step 2: Adjust partition size

To shrink a partition, use your mouse to drag one of its ends to shrink partition space.

Adjust partition size

You can also adjust the partition size box to shrink the target partition.
Click "OK" to continue.

Confirm to decrease partition

Step 3: Shrink partition

Click the "Execute Operation" button and "Apply" to keep all changes.

Keep changes