Host: Mac OS Mojave Parallels: 15 Pro Host: Cent OS 7 with expandable Parallels HD, SmartGuard disabled, Snapshots disabled I have changed my workflow to work with projects on the linux guest system. This gives 120 GB space back on my guest. The whole guest needs around 80 GB, the paralles hdd is 205 GB big. I have started the guest and and run dd zu create a zerofile. After dd was finished, the file was around 760 GB. I removed them with rm. The Parallels GUI says there is no space to reclaim, and the prl_disk_tool doesn`t see the free disk space too: prl_disk_tool compact -i --hdd Development.pvm/DEV\ Server\ Neu-0.hdd Operation progress 100 % Disk information: Sector size: 512 Block size: 2048 Total blocks: 828416 Allocated blocks: 196154 Used blocks: 196103 Operation supported: YES prl_disk_tool compact --hdd Development.pvm/DEV\ Server\ Neu-0.hdd Operation progress 100 % df -h (Guest) Dateisystem Größe Benutzt Verf. Verw% Eingehängt auf devtmpfs 2,9G 0 2,9G 0% /dev tmpfs 2,9G 0 2,9G 0% /dev/shm tmpfs 2,9G 9,1M 2,9G 1% /run tmpfs 2,9G 0 2,9G 0% /sys/fs/cgroup /dev/mapper/centos-root 50G 28G 23G 55% / /dev/sda1 1014M 309M 706M 31% /boot /dev/mapper/centos-home 756G 28G 729G 4% /home How can i reclaim the free space on the parallels image? Anyone an idea? Thx!