Available article translations:

Unable to enter Coherence: the option is grayed out

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


Unable to enter Coherence mode: this option is gray in the menu


If AVG Antivirus is installed in virtual machine, then virtual machine cannot switch to Coherence.


  1. Remove AVG Antivirus

    • Go to Start -> (Settings) -> Control Panel.
    • Open (Programs) -> Programs and Features, or Add or Remove Programs.
    • Select AVG 2013 in the list of programs.
    • Click the Uninstall or Change/Remove button.
    • Follow the instructions on your screen to complete the uninstallation.
    • Restart your computer.

    In case the uninstallation was not successful, use the AVG Remover tool

  2. Reinstall Parallels Tools

  3. Install AVG Antivirus back

In case AVG Antivirus is not installed in virtual machine, but Coherence option is grayed out, check the article.

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