Available article translations:

Unable to start the Windows virtual machine: Operation Time Out. Problem ID: 15.

  • Parallels Desktop for Mac Business Edition
  • Parallels Desktop for Mac Home Edition
  • Parallels Desktop for Mac Pro Edition


I cannot start the Windows Virtual Machine due to the error message "Operation Time Out. Problem ID: 15".


The Mac has been hard rebooted when Windows virtual machine was started (power outage).


We strongly recommend you to make a backup copy of the virtual machine before going any further:

How to backup my virtual machine?

When the virtual machine has been backed up, proceed with the instructions below:

  1. Restart the Mac.

    If restarting the Mac does not help, please do the following:

  2. Make sure the virtual machine is in shutdown state.

  3. Locate your virtual machine in Control Center > right click on the .pvm bundle > choose Show Package Contents.

  4. Launch Terminal application on the Mac.

  5. In the appeared Terminal window type in the command below:

    prl_disk_tool check --hdd 
  6. Drag-and-drop the file with .hdd format with the name of your virtual machine and hit Return.


    prl_disk_tool check --hdd /Users/<user_name>/Documents/Parallels/Windows\ 7.pvm/Windows\ 7\ 0.hdd
    Operation progress 83 %
  7. Wait for the operation to complete.

  8. Start the virtual machine.

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