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Fix 'there is not enough space available on the disk to complete this operation'

Updated on Aug 22, 2019 by Brithny to Partition Master

[There is not enough space (memory) available on the disk(s) to complete this operation]. This is an error that occurs to Windows 10/8.1/8/7 users when they try to create, shrink, extend a volume or convert a basic disk to dynamic in Disk Management. Learn from the guide to fix 'not enough space' error with 100% success.

Not enough space error message in Windows Disk Management:

Error 1 - "Not enough memory available to complete this operation. Quit one or more applications to increase available memory, and then try again."

Error 2 - "There is not enough space available on the disk(s) to complete this operation."

there is not enough space on the disk to complete this operation

When your computer says it's running low disk space to execute a certain task with below error messages, don't be fooled. Why does such an error message pop up on your PC? There are two typical reasons.

One. Due to the limitation of the extended partition and Disk Management tool itself, you cannot create a new partition on free space. Instead, you must delete the free space and turn it into unallocated space.

Two. It's only because you're not utilizing the memory right. Many Windows users prefer to install applications and store data files to the system drive, soon the drive will be filling up. And then, such an error generates.

However, if you try to move unused space from drive D:, E: or F: to drive C: with Disk Management program, you'll find that extend volume is grayed out if there's no unallocated space right behind your target disk (which has not enough space). So, we've collected the following solutions to help you resolve this error happened on your computer disk.

Solution 1 - Extend low-memory partition

When Windows Disk Management program sends "not enough space (or free memory)to complete this operation" error, it seems that you'll then have no choice but to close the window.

Instead of deleting existing partitions behind the partition with insufficient space with Disk Management, a third-party Disk Management alternative program to proceed the operation should be your best choice.


And the most recommended one is EaseUS Partition Master, which provides basic and advanced disk & partition management, among which the "resize/move partition" feature and "cleanup and optimization" feature will help effectively resolve this issue in Windows.

Download, install EaseUS partition manager software on your computer try it to fix this issue with the upcoming four steps:

Download Now

 Windows 10 is supported


Follow the guide carefully to fix "not enough space available on the disk to complete this operation" error.


Step 1: Launch EaseUS Partition Master

Run partition manager software

Step 2: Free up space to extend partition

If the hard drive has enough unallocated space to extend the target partition, jump to Step 3 and continue.

If not, free up space first:
1. Right-click on a partition next to the target partition and select "Resize/Move".
2. Drag the partition ends to free up space, leaving enough unallocated space behind the target partition, click "OK".

Free up space to extend partition

Step 3: Extend partition

1. Right-click on the target partition and select "Resize/Move".

Resize target partition

2. Drag the target partition handle into the unallocated space to extend partition.

Add space to the target partition

Step 4: Keep all changes

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

Keep all changes for extending partition

This will completely remove insufficient space error form your Windows PC.

Download Now

 Windows 10 is supported

Solution 2 - Clean up junk files and extremely large files to free up space

If the disk is theoretically filling up and gives such an error message, you don't need to buy a new large HDD or SSD to replace it, either. Try to do some cleaning with 'Cleanup and Optimization' feature in EaseUS Partition Master.

Let's see if the problem can be solved after unloading GBs of junk files and large files you never use.

To clean junk files:


Step 1: Launch EaseUS Partition Master. Select "Tools" and click "System Optimization".

choose system optimization

Step 2: Click "Junk File Cleanup". Then you can click "Analyze" to let EaseUS Partition Master find junk files on your PC.

choose junk file cleanup

Step 3: You can check and choose junk files and click Clean up. All of the selected junk files will be cleaned and deleted from your PC. Click "Yes" to clean up junk files.

Clean up junk files

You should now free up quite a lot of space from the partition and fixed the insufficient disk space error.

To clean large files:

Open System Optimization as above mentioned, this time choose Large File Cleanup and then follow the wizard to delete unwanted large files.

Clean up junk files

Further Help

EaseUS Partition Master is a cost-effective tool for resolving various disk problems. And if you are having similar problems to the 'not enough space' error, those following tutorial links are helpful. 

1. Low disk space

2. Expand partition in Windows 7

3. Extend C drive in Windows 10

Know more about EaseUS disk & partition management software from the video