Available article translations:

ERROR: Unable to save the configuration because it is invalid

  • Parallels Desktop 9 for Mac Standard Edition
  • Parallels Desktop 8 for Mac Standard Edition
  • Parallels Desktop 7 for Mac Standard Edition


Parallels Desktop displays the following error:

Unable to save the configuration because it is invalid.


This may happen if the MAC address in the virtual machine configuration is incorrect.


1. Make sure your virtual machine is stopped;

2. Open your virtual machine configuration editor, go to Hardware tab and click on your network adapter (check all of them if necessary):

3. Make sure that MAC address there complies with the following format:

XX:XX:XX:XX:XX:XX, where X is either a number from 0 to 9, or a letter from A to F, case-insensitive.

Example: 01:23:45:67:89:ab

See this Wikipedia article for more details:

MAC address

4. If you are not sure or there is no difference which adapter you have, you may press the Generate button on the right. It will generate a valid MAC address for your virtual machine.

223eaea75536b1878213dd8e38ab608d 1e5db16426987d561060acdf56d947b4 a9c6e0b6a5209e617a7c0dd5eace86cf 97cd84747b25a2e5a06065a21a747a53 3307fff3682b15f0ba3fbe13d779296d

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