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Resize, Expand, Move EFI System Partition (ESP) in Windows 10/8/7

Updated on Dec 04, 2018 by Abby Haines to Partition Manager

Here is reliable partition software that allows you to resize, expand or move EFI partition in Windows 10/8/7. Try it to edit your EFI system or boot partition (ESP) without losing data when Windows built-in Disk Management tool failed to do the job.

"What I want is simple, 100 MB is too small and I just want to make it 1GB. See that unallocated space in the colored grey box, I want to move that near the EFI System Partition so that I could merge it. But now the problem is I can't because of Microsoft Reserved Partition, so I'm stuck. How should I enlarge or extend it?"

Why you can not resize EFI partition with Disk Management tool

This is the question about how to expand EFI partition asked by a user on the forum. Just like this case, you might want to resize, extend, move or delete EFI partition in some special situations. But soon you may find you cannot do it with the Windows built-in Disk Management tool. How does it happen? Because EFI system partition (ESP for short) is different from other partitions. It is usually created when you successfully install Windows OS on a GPT disk of your computer and protected and locked by the Windows to prevent and avoid systems unbootable issue. So, you are not allowed to edit EFI system partition with Windows built-in Disk Management tool. 

Reliable software to resize, expand or move EFI partition

So, does it mean it is impossible for you to resize or expand EFI partition? Of course not. Professional third-party partition manager software with "Resize/Move" feature is ready for help at any time. Here, EaseUS partition software, a popular disk management tool is recommended. It can help you resize, expand or move the EFI partition without any limitation. And it allows you to extend EFI partition in multiple methods: merge EFI partition with adjacent unallocated space, or shrink the adjacent partition to leave more space for EFI partition. During the process, no data loss problem will happen. 

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 Windows 10 is supported

To resize or expand EFI partition, follow these steps: 


Step 1: Locate the drive/partition

Which drive/partition do you want to adjust its size? Right-click on it and choose "Resize/Move".

choose the partition

Step 2: Resize the partition

You can either shrink the selected partition or extend it.

To shrink the partition, simply use your mouse to drag one of its ends into unallocated space. Expand the "Advanced Settings" list, where you can see the exact disk space for each partition. Once done, click "OK".

Fig. 1 Unallocated space before the drive.

drag the mouse leftwards to resize partition

Fig. 2 Unallocated space after the drive.

drag the mouse rightwards to resize partition

To extend the partition, make sure that there is unallocated space aside (if there isn't, follow the above steps to create some). In the same way, drag your mouse towards the unallocated space. Click "OK".

Fig. 3 Add unallocated space into the partition

drag the mouse towards unallocated space

Step 3: Apply changes

At this step, you will see the new disk partition information & diagram.

disk partition information after resizing

To save changes, click the "Execute Operation" button and then "Apply".

apply changes to the partition
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 Windows 10 is supported