Windows 10: Disk management fails to shrink volume

I want to shrink the G: volume but Disk Management shows the following error after the "Querying available shrink space ..." message:

"An unexpected error has occurred. Check the System Event Log for more information on the error. Close the Disk Management console, then restart Disk Management or restart the computer."

I have checked Event Log but I couldn't find it. Either I don't know where to look or Windows didn't register the error.

Please help

:)

 

Disk Management Shrink Volume wrong capacity


I have 6 partitions on my hard drive. Under Disk Management, when I select a partition and then "Shrink" all but one shows the total capacity correctly, along with the amount to shrink and then the remaining that will be left. However on one partition, when selecting shrink, the total capacity is the sum of the total plus the free, and not just the total capacity. As such, I cannot shrink this volume without an error. The capacity is about 350GB with the free about 200GB. When I select shrink, the total of the volume shows 550GB instead of 350GB. The correct capacity of 350GB shows correctly on the Disk Management listing and boxes on the initial screen and also under Properties on the File Manager. It is only when selecting the shrink option that it shows 550GB.

 

Extend Volume in disk managment not working

Hi,



Thank you for posting your query in Microsoft Community. Let me help you.

• 
  Since when did the issue started appearing?
  
• 
  Have you made any changes in settings prior to the issue?
  
• 
  Do you receive any error code or error message on the screen?
  

I suggest you to follow the exact steps mentioned below and check if you are able to perform the action.

• 
  Run Disk Management. Open Run Command (Windows button +R) a dialog box will open and type "diskmgmt.msc".
  
• 
  In the Disk Management screen, just right-click on the partition that you want to shrink, and select “Extend Volume” from the menu
  
• 
  Locate your system partition — that’s probably the C: partition. Right-click on it and select “Shrink Volume.” If you have multiple partitions on your hard drive, you could also choose to resize a different partition to free up
  space.
  

Check if it helps.



Please reply with the details and updated status of the issue. We will be happy to assist you further.

 

Need help shrinking a volume

It's not because of the RAID. You are trying to shrink the system partition. Get yourself Acronis Disk Manager (or any other disk management software) and try with it. Windows (XP or Vista) won't allow you to change the volume of the system partition with it's inbuilt tools.