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Incorrect behaviour/appearance of the virtual machine windows in Full Screen or Window view modes

APPLIES TO:
  • Parallels Desktop 10 for Mac Home Edition
  • Parallels Desktop 9 for Mac Standard Edition

Symptoms

Windows virtual machine seems does not show/view correctly during window mode etc.

View the video captured.

The problem happens during all view mode except Coherence mode.

Also sometimes after minimizing a window, the windows stay as the grey square.

Cause

MacLook view is changing the behavior of standard Windows controllers (e.g Video Controller) in order to make the view of the applications in a Mac way. Some Windows applications are not compatible with the modified controllers.

Coherence mode also integrates in the system and makes some changes of Windows controllers' behavior. MacLook view 'knows' about Coherence mode and tries to adapt to it as well. In this particular situation, the settings of Windows controllers' are optimum.

Resolution

  1. Disable MacLook view: View -> Uncheck Use MacLook.

As for the second issue with the "grey square" - the reason can be in Avast! Antivirus.

Please remove it and check the issue:

  • Start Windows virtual machine and go to Start > Control panel > Program and features.
  • Find Avast! in the list, select it and choose Uninstall.
  • Follow the instructions.

After that please start virtual machine and check the issue.




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