Hide Windows Taskbar is greyed out

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Unable to hide the task bar in Windows when the Virtual Machine is running in Coherence mode.

Show / Hide Windows Taskbar option is greyed out


One of Parallels Tools components (prl_cc.exe, Parallels Control Center) hasn't been launched with Windows start or DesktopUtilities.dll was not loaded.


  1. Reinstall Parallels Tools:

    • In Windows go to Start -> Control Panel -> Programs and Features (Add and Remove programs in Windows XP)
    • Locate Parallels Tools in the list of installed programs
    • Click Uninstall Button to uninstall Parallels Tools
    • Once uninstallation is complete please reboot your Windows Virtual Machine
    • Once Windows is rebooted install Parallels Tools

    If the issue still persists:

  2. Check that Parallels Tools are not blocked by an antivirus or firewall software installed in Windows (if any). Add Parallels Tools to the "white list" of your antivirus/ firewall.

  3. Make sure prl_cc.exe is started and works properly:

    • Go to C:\Program Files (x86)\Parallels\Parallels Tools and start prl_cc.exe (right click on the file -> run as administrator).
    • Check that is was started by executing tasklist | findstr prl_cc.exe in command line:

    • Go to Start -> in the search type in CMD -> start CMD (command line) -> type the following and hit Enter/Return

      tasklist | findstr prl_cc.exe

      The output should look like:

      prl_cc.exe                     280 Console                    1     20,312 K
  4. Reboot your Virtual Machine and check the issue.

    if the issue still persists:

  5. Make sure Parallels Control Center (prl_cc.exe) is loaded on Windows startup:

    • create a shortcut of the prl_cc.exe (located in C:\Program Files (x86)\Parallels\Parallels Tools)
    • copy created shortcut to C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup directory

Related articles:

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  1. DesktopUtilities.dll responsible for TaskBar was not loaded:

    from PR (Guest OS): could not load DesktopUtilities.dll, win32 err = 127

  2. prl_cc.exe is not started

BE AWARE: DOES NOT WORK with XP and latest PD 9 release due to the bug: https://jira.sw.ru/browse/PDFM-43153

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