Cannot reclaim disk space

Info

• I am running latest El Capitan (Mac OS X 10.11.4), latest Parallels Desktop (11.1.3), latest Windows 10 Home.
• Disk Usage according to Windows: 11.5 GB
• Disk Usage according to Mac: 47.37 GB

Things I have tried

• http://kb.parallels.com/en/114654
  
• http://kb.parallels.com/en/122668
  
• Verified I have no snapshots
• Reinstalling Parallels Tools
• Clicked the Compress... button in Parallels VM Hardware -> Hard Disk 1

History

• It was a Windows 7 VM that I upgraded to Windows 10. At one point VM Mac disk usage was 100+ GB. Deleted a bunch of software/data on Windows, deleted a bunch of snapshots, did the trim support, got it down to 47 GB. Now want to get it the rest of the way

Ideas?

 

Hi, try this solution.

 

I just realized that the hdd file (which is actually a folder) has 2 files:

1. Windows 7-0.hdd.0.{GUID_1}.hds (which is the 11GB I expect)
2. Windows 7-0.hdd.0.{GUID_2}.hds (which is 35GB)

Any idea what this 2nd file is? Can I just delete it? I am going to try and do
prl_disk_tool merge
first

 

That did it. Once I did the merge I was able to reclaim the remaining space

 

The other .hdd file must be a virtual machine hard drive from an older VM. If you delete the hdd you might end up loosing data. And glad that you are able to reclaim the space.