By Dervish / Last Updated March 7, 2022


There is not enough space available on the disk to complete this operation

Hello, I’ve just installed brand new SSD in my PC and switched from HDD to it. And I tried to create new partition on the SSD, and I got an error “there is not enough space available on the disk to complete this operation”. And I couldn’t continue. My PC running with Windows 10, anyone can help me? Thanks

- Question from

No Enough Space Available

Why there is not enough space available on the disk?

We can see lots of related reports on forums. When people have a new disk, in other conditions where they wanted to create, shrink, resize, extend partition on the hard drive or SSD, they may receive an error “there is not enough space available on the disk(s) to complete this operation". It is usually it happens because the following 3 causes:

● Disk Management error: You may have some changes on your hard drive but the Disk Management failed to detect the changes. Thus when you were extending or creating new volume, it free space actually is taken by some files.
● Not enough space on the disk: You can see how much unallocated space on the right side of the volume you want to extend. When the unallocated space is smaller than the space you need, you can receive the “not enough space” error.
● MBR disk limit: A disk needs to be formatted with a partition style to decide how to store and access data. The MBR partition style is old, and MBR disk only allows 4 primary partitions at most. Thus it will be no available space for creating 5th partition.

If you got the same problem, don't worry, refer to the following content. According to the 3 factors, we will demonstrate 3 methods of dealing with the "not enough space available" in Windows 10, 8, 7. 

How to solve “There is not enough space available on the disk to complete this operation”?

Method 1. Scan the disk

You can help Disk Management to rescan disks on your PC to see if there are some changes that were missing. Here are the steps:

Step 1. Press “Win + R” to launch “Run” program, and type “cmd” to open Disk Management.

Step 2. Once the Disk Management launched, click “Action” on the top of the main interface, and choose “Rescan Disks”.

Scans Disks

Then wait for it scans disks on your PC, and see if the issue is still there.

Method 2. Resize partition with third-party disk manager

The Disk Management says there is not enough space while creating, shrinking, extending partition, you can turn to a powerful Disk Manager alternative-AOMEI Partition Assistant Professional that effectively and easily change partition size, create new partition or other disk management tasks.

For example, with its “Extend Partition Wizard” features, you can directly extend a partition with free space on other partitions without deleting any partition, so you will not lose any data. Here is the demo version, and follow the steps below, we will demonstrate you how this tool work by explain the “Extend Partition Wizard”.

Download Demo Win 10/8.1/8/7/XP
Secure Download

Step 1. Launch AOMEI Partition Assistant, select “All Tools” > “Extend Partition Wizard” as the screenshot.

All Tools

Step 2. Here you can choose “Extend system partition” or select other data partition of a disk, and click “Next”.

Extend Partition Method

Step 3. Choose a disk partition that contains free space. The space will be assigned to the partition you want to extend later, and click “Next”

Select Partitions

Step 4. Specify the partitions size on the hard disk in this window.

Extend Size

Step 5. Check the operation, and click “Proceed” to start the task.


In addition, AOMEI Partition Assistant also perform well in creating, enlarge/shrink partition, moving partition. You can right-click on free space, unallocated space to create a primary/logical partition. Or right-click on a partition to resize partition or move the location.

Method 3. Convert MBR to GPT

If your disk is using MBR partition style, you may get the error “There is not enough space available on the disk to complete this operation” while creating partition in Windows 10, 8, 7. MBR partition style is old, and it only supports up to 4 primary partitions. So to solve this issue, you need to convert the MBR disk to GPT.

Firstly, launch AOMEI Partition Assistant, you can check if the disk is MBR on the main interface.

Pa Pro

If it is MBR disk and has 4 primary disk, follow the steps below to convert the MBR to GPT partition style with AOMEI Partition Assistant. It can complete this operation quickly and ensure your data safe.

✍ Note: GPT-based system disk requires UEFI firmware. If it is the system disk that would be converted, please make sure your computer is using UEFI mode.

2. To know what booting firmware your PC using, press “Win + R” to open Run, and type “msinfo32” to open System Information. And see “BIOS Mode” to know if it is using BIOS or UEFI. You can go to this page to know more about it and see how to convert the BIOS to UEFI: How to Convert MBR to UEFI in Windows 10, 8, 7?

Step 1. Right-click on the disk that got the issue, and click “Convert to GPT Disk”.

Convert System Disk To Gpt

Step 2. It will prompt a note to ask you ensure your motherboard supports UEFI if the disk contains a system. Click “Yes” to confirm.

Ok To Gpt System Disk

Step 3. Click “Apply” on the main console. Wait for a while, the disk will be converted to GPT disk. Then you can continue creating partition on the disk.

Apply To Gpt System Disk


If you receive “There is not enough space available on the disk(s) to complete this operation while creating, shrinking, extending partition, it is a rare issue, try 3 methods above to solve it.

The build-in Disk Management is a simple, in some cases that it can’t satisfy your demand. AOMEI Partition Assistant is a great alternative that helps you to change partition size, convert partition style ensuing no data loss, and do other operations to manage your storage like convert FAT32 to NTFS, NTFS to FAT32,  manage dynamic volumes, and so on.

Besides, if you are using Windows Server, it has a Server edition for you to manage your storage space.