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Fix Windows 10/8/7 Can't/Unable to Shrink Volume Partition Error

Updated on Dec 19, 2018 by Tracy King to Partition Manager

Summary:
Can’t shrink C: drive in Windows 10? Windows was unable to shrink volume in Windows 10, 8 or 7 PC? Relax! This tutorial article will provide you 2 reliable methods to guide you effectively shrink and decrease hard drive partition or volume in Windows PC and fix can’t shrink volume error with simple clicks. Just follow to see how to shrink hard drive partition and make full use of storage space in your PC now.

Windows was unable to shrink C: drive in Windows 10

"Hi guys, do you know why Windows 10 doesn't allow me to shrink C: drive on my laptop? The Shrink button is disabled. 
I got quite a lot of free space left on my C drive and I want to shrink the drive so to use the free space for saving more data on my PC. Guess what?
I just can't shrink or decrease C drive with Disk Management tool. It won't allow me to do so with an error message, saying that "You cannot shrink a volume beyond the point where any unmovable files are located. See the 'defrag' event in the Application log for detailed information about the operation where it has completed."
So what else can I do shrink my system C drive and make full use of the free space? Please do help me if you have a solution. Thank you
."

Windows unable to shrink volume in Windows 10/8/7.

So what will you do when you are told that you can't shrink the target volume in Windows 10, 8 or 7? Here in the below, this page will provide 2 fast and effective methods to help you effectively get rid of can't shrink hard drive partition error in Windows 10/8/7. Just follow to see how to fix Windows unable to shrink volume error and decrease hard drive partition space with ease now.

Method 1. Quick shrink volume in Windows 10/8/7 with Disk Management alternative software

When you failed to shrink or decease partition or volume such as system C: drive, don't worry. Powerful Disk Management alternative software - EaseUS Partition Master Free can effectively help you free shrink and decrease C drive in Windows 10/8/7 by simple clicks.

Feel free to download, install and apply this free partition manager software to shrink C drive as an example to fix unable to shrink volume error on Windows PC now:

Download Now

 Windows 10 is supported

 

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

Wait for the process complete and then you may need to reboot PC to keep all changes. Now that, you've successfully shrunk C drive without using Disk Management. No volume shrink failure error occurred. And you can use the shrunk free space for other usage now.

Method 2. Fix and repair Windows unable to shrink volume/partition error in Windows 

To directly fix and repair Windows unable to shrink volume or partition error in Windows 10, 8 or 7, you'll need to follow below two steps to solve all issues now:

Step 1. Defragment hard drive partition or volume in Windows 10/8/7

1. Sign into Windows 10 with an administrator account;
2. Click "Start" > Select "File Explorer".
3. Expand This PC tree on the left pane, right-click "Local Disk (C:)" or other partition which can't be shrunk in Windows PC;
4. Select "Properties" > Go to "Tools" tab and click "Optimize" under Optimize and defragment drive section;
5. Select system drive (C) box on the Optimize Drives box, click "Analyze".
Wait until Windows complete the analysis and displays the percentage of the fragmented files in the selected drive.

Step 2. Check disk and repair bad sectors or errors

If the number of bad clusters detected by dynamic bad-cluster remapping is too high, you'll not be able to shrink the partition. 
So to perform a disk check and repair all bad sectors and errors is your next move:

1. Right-click on the drive or partition which can't be shrunk in Windows PC and select "Properties".
2. Go to "Tools" tab, click "Check" button under "Error checking".
Wait to let the process complete so to check drive for file system error.

You can also apply EaseUS free partition manager software to fix and repair all existing bad sectors, file system errors by checking hard drive partition error.

Download Now

 Windows 10 is supported