Perform this task to scan associations between VMs and back-end storage files for storage files that are not mounted to VMs and are not VM OS installation packages or virtualization drive files. You can delete these files to free up storage.
To avoid VM operating issues, verify that the VM storage files to be deleted are not useful before you perform the cleanup operation.
On the top right of the page, click Hot Key, and then select Clean Storage.
Click Start Scan.
Select files that you want to delete or click Select All to select all files.
Click Clean.