I have a case where my Parallels .PVM file appears to become corrupt. This has happened 4 times over the past 12 months. Here is the normal course of events: While working in Parallels the VM freezes and becomes unresponsive. I get the spinning beach ball of death. Eventually the Mac becomes unresponsive and a forced shutdown must be performed. After rebooting the Mac, Parallels does not start. It keeps spinning but the VM window never opens. Any attempt to do anything in Parallels makes the Mac unresponsive. After another Mac reboot, attempting to copy the .PVM file to an external hard disk results in "The operation can't be completed because an unexpected error occurred (error code 100034)." To fix the problem I have to delete the .PVM file and restore a backup of the file. After this initially happened I did a complete reformat of the Mac SSD and reinstall of the OS. But the problem has resurfaced 3 times since. I now regularly back up my .PVM file to an external SSD so I don't lose everything. I do regular backups with Time Machine but the .PVM file is excluded. This has happened with multiple Parallels versions and multiple Mac OS versions. I've searched for answers regarding the 100034 error code when copying the file but can't determine anything definitive. Running Disk FirstAid shows a healthy disk. Any ideas of what might be causing this issue? MacBook Pro (15-inch, 2017), 16 GB, 500 GB SSD macOS Mojave 10.14.4 Parallels Desktop v14.1.3 Guest OS: Windows 10.