SSD displaying incorrect size, despite having no unallocated space

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I have a 120GB SSD that I recently copied to a 250GB SSD via a device-device clone on Clonezilla, the clone worked without issue and all of my previous partitions were successfully cloned to the new SSD.

However, after this clone there doesn't seem to be unallocated space on the drive, just 120GB of partitions.

Windows Disk Management is reporting the disk as 111.79GB – with no unallocated space, as does the "Volumes" tab on the drive.

The drive is being correctly identified as a 250GB Samsung SSD, however the full capacity isn't being recognized.

I have attempted to use tools such as MiniTool Partition Wizard to "recognize" the missing space however have failed to do so.

Best Answer

I had exactly same problem after cloning 256 GB SSD to 512 GB one.

I've solved it purely by accident using diskpart.exe while desperately trying out anything related to disk and volume management in Windows:

  1. Fire up diskpart.exe
  2. SELECT DISK n (n — whatever your new disk number is. Find number using LIST DISK command)
  3. SELECT VOLUME n (where n is number of any volume that is located on a problematic disk. Find it using LIST VOLUME command)
  4. EXTEND (without any parameters)

and voilà, you can now see all the unallocated space in Windows Disk Management and can extend an existing volume or add a new one.

I still do not understand what the problem was, but hey, who cares, it is gone now.

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